IV Therapy Notecards
Concept: Fluid and Electrolytes
Exemplar: Intravenous Therapy
Student Learning Outcomes (SLOs)
Peripheral vs Central IV Catheters: Describe the differences in their use.
Supplies & Equipment: Identify necessary supplies for peripheral IV therapy.
Catheter Placement: Demonstrate proper peripheral IV catheter placement and discontinuation techniques.
IV Therapy across Lifespan: Explain the rationale and process for initiating, maintaining, and discontinuing peripheral IV therapy across different age groups.
Types of IV Fluids: Identify conditions warranting hypertonic, hypotonic, and isotonic IV fluids.
Complications Prevention: Discuss prevention and treatment for complications associated with peripheral IV therapy.
Why IV Therapy?
Fluid and Electrolyte Balance: Maintain or correct imbalances in fluids and electrolytes.
Medication Administration: Administer medications effectively.
Blood Transfusions: Provide a means for administering blood transfusions.
Parenteral Nutrition: Enable parenteral nutritional support.
Diagnostic Agents: Administer diagnostic agents when appropriate.
Definitions: Enteral vs. Parenteral
Enteral: Related to or passing through the intestines, either naturally or artificially.
Parenteral: Pertaining to administration or occurrence outside the intestines, often referring to IV therapy.
Peripheral IV
Usage: Catheter serves as a conduit through which fluids and medications can be administered.
Central Venous Access Device (CVAD)
Definition: A type of catheter that directly accesses the central venous system.
Placement: Typically inserted into the subclavian vein to reach the superior vena cava near the right atrium.
Image Reference: Placement of a triple-lumen nontunneled percutaneous central venous catheter.
Peripherally Inserted Central Catheter (PICC)
Definition: A type of central line inserted into a large peripheral vein in the arm and advanced toward the heart.
Indication: Useful for long-term medication administration, blood draws, and central venous pressure monitoring.
Diagram Reference: Illustrations showing placement and anatomy involved in PICC insertion.
Midline Catheters
Definition: A catheter longer than standard peripheral IV but shorter than a PICC, measuring 3-8 inches long.
Indication: Offers a good alternative for short-term therapy, without the deep venous access of a PICC.
Indications for a Central Line
Unstable Clients: Needed for those requiring multiple IV infusions.
Long-term IV Chemotherapy: Required for treatment lasting more than 2-3 months.
Total Parenteral Nutrition (TPN): Clients who need long-term parenteral nutrition.
Irritating Medications: For the administration of irritating or damaging solutions.
Difficult Venous Access: History of failed attempts at peripheral access.
Peripheral Catheter Characteristics
Definition: Short-term IV access primarily in the arm or hand.
Types:
Over-the-Needle Catheter (e.g., Angiocath): Most common.
Winged Infusion Needle (Butterfly Needle): Specialized use for short-term access.
Central Venous Catheters (CVCs)
Placement Locations: Typically, the subclavian vein is accessed for insertion.
Uses: Ideal for long-term therapies or situations needing high-volume fluid administration.
Types of CVCs:
Tunneled: Catheter pathway under subcutaneous tissue.
Nontunneled: Direct access without subcutaneous passage.
Implanted Ports: Devices placed under skin to allow access for medications or fluids.
PICC: Safe, inserted by nurses, offers numerous benefits including multiple lumens for simultaneous infusions.
IV Therapy: Equipment & Supplies
IV Start Kit: Essential for beginning IV therapy, contents include:
Catheter Hub
Flashback Chamber
Introducer Needle (Stylet)
Safety Retraction Device
Needle Guard
Choosing the Right Size Catheter
Guidelines:
22-24 gauge: for infants, pediatric and geriatric clients.
20 gauge: standard for most adults.
16-18 gauge: utilized for rapid fluid replacement.
Evidence-Based Practice Alert: Confirm policy for blood transfusions regarding catheter gauge.
Choosing the Right Site for IV Insertion
Approach:
Start with distal veins in the arm and proceed proximally.
Prefer non-dominant arm.
Select veins that are large, palpable, and in good condition.
Veins to Avoid:
Areas of A-V fistula or mastectomy.
Sites in areas of flexion (e.g., wrist).
Damaged or tortuous veins.
Pediatric Considerations
Additional Notes: Consider the child's perspective on IV therapy, use dolls for demonstrations, and appropriate catheter sizes (22-24 gauge).
Older Adult Considerations
Impact of Aging: Recognize fragile skin, assess vein conditions carefully, consider avoiding tourniquet use.
Factors to Consider for IV Site Selection
Criteria: Purpose, duration of therapy, patient age, and vein condition.
Evaluation: Select suitable vein for the expected therapy and observe for complications.
IV Insertion Procedure
Aseptic Technique: Essential for infection prevention. Cleanse insertion site thoroughly for at least 30 seconds.
Documentation Requirements: Chart gauge, location, dressing status, patient tolerance, number of insertion attempts, and who performed the procedure.
Discontinuing IV Therapy
Steps:
Remove securing tape while stabilizing catheter.
Apply gauze above IV site; apply pressure for 2-3 minutes.
Check for intact catheter tip; if broken, notify provider.
IV Solutions: Checks Before Use
Confirm expiration date, imperfections, cloudiness, and ensure volume correlation with orders.
Types of IV Fluids
Hypotonic: Lower osmolarity than serum, causes fluid shifts into cells (e.g., 0.33%, 0.45% normal saline).
Isotonic: Equal osmolarity to serum, maintains vascular volume (e.g., 0.9% normal saline).
Hypertonic: Higher osmolarity than serum, draws fluid from cells into the vascular compartment (e.g., D5W, 0.9% normal saline).
Conditions Indicating Fluid Types
Hypotonic: Dehydration with high serum sodium (hypernatremia).
Isotonic: Isotonic fluid replacement for conditions like hypovolemia.
Hypertonic: Severe hyponatremia, elevated intracranial pressure requiring removal of excess fluid from tissues.
Complications of IV Therapy
Local Complications include phlebitis, infiltration, and extravasation.
Systemic Complications include fluid overload and air embolism.
Nursing Actions should be promptly executed for complications like phlebitis, infiltration, or extravasation to prevent further injury.
Summary of Complications
Phlebitis: Inflammation, may feel warm, painful, and hard; management involves removing the IV and warming compresses.
Infiltration: Fluid accumulation in tissues, manage by stopping infusion and restarting IV.
Extravasation: Serious injury from vesicants including medications; immediate intervention is critical.
Nursing Considerations: Be vigilant with IV site assessments and documentation, and prevent infection through proper technique.
Additional Considerations
Avoid blood pressure measurement on an arm with IV, no restraints over IVs, and appropriate management when working with flexed extremities.
Concept: Fluid and Electrolytes
Exemplar: Intravenous Therapy
Student Learning Outcomes (SLOs)
Peripheral vs Central IV Catheters: Describe the differences in their use, focusing on duration of therapy, types of medications, and patient acuity. Peripheral catheters are for short-term access, while central catheters are suited for long-term therapy or administration of irritating solutions.
Supplies & Equipment: Identify necessary supplies for peripheral IV therapy, including different types of catheters, antiseptics, dressings, and infusion sets.
Catheter Placement: Demonstrate proper peripheral IV catheter placement and discontinuation techniques, emphasizing aseptic technique and patient comfort.
IV Therapy across Lifespan: Explain the rationale and process for initiating, maintaining, and discontinuing peripheral IV therapy across different age groups, considering physiological differences and a patient-centered approach.
Types of IV Fluids: Identify conditions warranting hypertonic, hypotonic, and isotonic IV fluids, understanding their effects on cellular fluid balance.
Complications Prevention: Discuss prevention and treatment for local and systemic complications associated with peripheral IV therapy, such as phlebitis, infiltration, extravasation, fluid overload, and air embolism.
Why IV Therapy?
Fluid and Electrolyte Balance: To maintain or correct acute or chronic imbalances in body fluids and electrolytes, such as dehydration, hypovolemia, or severe electrolyte deficits (e.g., hypokalemia, hyponatremia).
Medication Administration: For the rapid and effective administration of medications, including antibiotics, analgesics, antiemetics, and chemotherapy, especially when oral routes are not feasible or immediate action is required.
Blood Transfusions: To provide a safe and controlled means for administering blood products (e.g., packed red blood cells, plasma, platelets) to address anemia, coagulopathies, or acute blood loss.
Parenteral Nutrition: To enable total parenteral nutrition (TPN) for clients who cannot absorb nutrients via the gastrointestinal tract, providing essential calories, proteins, electrolytes, and vitamins.
Diagnostic Agents: To administer diagnostic agents, such as contrast media for imaging studies (e.g., CT, MRI) or radiopharmaceuticals.
Definitions: Enteral vs. Parenteral
Enteral: Related to or passing through the intestines, either naturally (e.g., oral medications, normal digestion) or artificially (e.g., nasogastric, gastrostomy tube feedings).
Parenteral: Pertaining to administration or occurrence outside the intestines. This term often refers to methods such as intravenous (IV), intramuscular (IM), subcutaneous (SC), or intradermal injection, with IV therapy being a primary example.
Peripheral IV
Definition: A short, flexible catheter typically inserted into a small vein in the arm or hand for temporary IV access.
Usage: It serves as a conduit through which fluids, medications, and blood products can be administered for a limited duration (typically up to 72-96 hours). Peripheral IVs are generally preferred for less irritating solutions and when central venous access is not required.
Central Venous Access Device (CVAD)
Definition: A type of catheter that directly accesses the central venous system, allowing for the rapid delivery of fluids, medications, and nutritional support into larger, high-flow veins.
Placement: Typically inserted into major central veins such as the subclavian vein, internal jugular vein, or femoral vein, with the tip advanced to reside in the superior vena cava near the right atrium or the right atrium itself. Placement requires sterile technique and confirmation by chest X-ray.
Image Reference: Placement of a triple-lumen nontunneled percutaneous central venous catheter.
Peripherally Inserted Central Catheter (PICC)
Definition: A type of central line inserted into a large peripheral vein in the upper arm (e.g., basilic, cephalic, brachial veins) and advanced proximally, with its tip terminating in the superior vena cava, similar to other CVADs.
Indication: It is highly useful for long-term medication administration (e.g., extended antibiotic therapy, chemotherapy), frequent blood draws, and central venous pressure monitoring, offering an alternative to surgically inserted central lines due to its lower risk of complications associated with insertion.
Diagram Reference: Illustrations showing placement and anatomy involved in PICC insertion.
Midline Catheters
Definition: A catheter that is longer than a standard peripheral IV but shorter than a PICC, typically measuring 3-8 inches (8-20 cm) in length and inserted into a peripheral vein in the arm. Its tip generally resides in the axilla, rather than reaching the central circulation.
Indication: Offers a good alternative for intermediate-term therapy (e.g., 1 to 4 weeks) for medications that are not vesicants or hyperosmolar, providing a longer dwell time than peripheral IVs without the risks associated with deep central venous access.
Indications for a Central Line
Unstable Clients: Essential for patients requiring multiple incompatible IV infusions, vasopressors, or rapid, high-volume fluid resuscitation due to shock or severe trauma.
Long-term IV Chemotherapy: Required for chronic or intermittent chemotherapy regimens lasting more than 2-3 months, as these medications can be irritating to peripheral veins.
Total Parenteral Nutrition (TPN): Clients who need long-term parenteral nutrition, as TPN solutions are highly hyperosmolar and can cause phlebitis in peripheral veins.
Irritating Medications: For the administration of vesicant or highly damaging solutions (e.g., certain antibiotics, vasopressors like norepinephrine, potassium chloride infusions) that would otherwise cause severe damage to peripheral veins.
Difficult Venous Access: For patients with a history of failed attempts at peripheral access, severely compromised peripheral veins, or chronic illnesses requiring frequent IV access.
Peripheral Catheter Characteristics
Definition: Short-term IV access device primarily utilized in the superficial veins of the arm or hand for therapies lasting less than 4-7 days.
Types:
Over-the-Needle Catheter (e.g., Angiocath): The most common type, consisting of a flexible plastic catheter covering a steel introducer needle. Once the vein is accessed, the needle is withdrawn, leaving the catheter in place. Available in various gauges.
Winged Infusion Needle (Butterfly Needle): Features small, pliable "wings" on either side for easy manipulation and securing. These are typically smaller gauge needles (e.g., 23-25 gauge) with a short tubing, ideal for short-term infusions, single-dose medication administration, or blood draws, especially in pediatric or elderly patients with fragile veins, due to less trauma to the vessel wall.
Central Venous Catheters (CVCs)
Definition: Catheters inserted into large central veins, providing robust and long-term venous access. The tip typically resides in the superior vena cava, allowing for rapid dilution of infusing solutions due to high blood flow.
Placement Locations: Common insertion sites include the subclavian vein, internal jugular vein, and femoral vein. Placement requires careful anatomical consideration and sterile technique, often guided by ultrasound, and confirmed by chest X-ray to prevent complications like pneumothorax or malposition.
Uses: CVCs are ideal for:
Long-term therapies (e.g., chemotherapy, prolonged antibiotic courses).
Administration of highly osmolar or vesicant medications (e.g., TPN, certain vasopressors) that would damage peripheral veins.
Rapid, high-volume fluid resuscitation.
Hemodynamic monitoring (e.g., central venous pressure, CVP).
Frequent or large volume blood sampling.
Hemodialysis.
Types of CVCs:
Tunneled Catheters (e.g., Hickman, Groshong): These catheters are surgically inserted, with a portion of the catheter tunneled under the skin before entering the vein. This subcutaneous tunnel creates a barrier against infection, making them suitable for months to years of therapy. They often have a cuff that promotes tissue ingrowth, further reducing infection risk.
Nontunneled Catheters (e.g., triple-lumen central lines): Inserted directly into a central vein (e.g., jugular, subclavian, femoral) without a subcutaneous tunnel. These are generally for short-term use (days to weeks) in acute care settings due to a higher infection risk compared to tunneled types, but they are easier and quicker to insert.
Implanted Ports (e.g., Port-A-Cath): These devices are surgically placed entirely under the skin, often in the chest wall, with a reservoir (septum) accessed by a special non-coring needle. They offer the lowest infection risk and allow patients to maintain a normal lifestyle without an external catheter. Indicated for intermittent, long-term therapy (months to years), such as chemotherapy.
Peripherally Inserted Central Catheters (PICC): While inserted peripherally (in the arm), their tip resides in the central venous system (superior vena cava), classifying them as central lines. They are generally safe, can be inserted by specially trained nurses at the bedside, and offer numerous benefits including multiple lumens for simultaneous infusions of incompatible medications. They can remain in place for weeks to several months.
IV Therapy: Equipment & Supplies
Personnel: Requires trained healthcare professionals (e.g., registered nurses, paramedics, physicians).
Patient Preparation: Education and psychological support are crucial, especially for anxious patients or children.
Aseptic Technique: Strict adherence to aseptic principles throughout the entire procedure is paramount to prevent catheter-related bloodstream infections (CRBSIs).
IV Start Kit: This pre-packaged kit contains the essential components for initiating peripheral IV therapy efficiently and aseptically. Contents typically include, but are not limited to:
Sterile Gloves: To maintain asepsis.
Antiseptic Solution: Chlorhexidine gluconate with alcohol is the preferred agent for skin preparation due to its rapid and persistent antimicrobial action. Povidone-iodine is an alternative.
Tourniquet: Applied proximal to the insertion site to distend veins and make them more palpable and visible.
Appropriate Catheter: Selection based on patient age, vein condition, and purpose of therapy (e.g., 20 gauge for adults, 22-24 gauge for pediatric/geriatric).
Catheter Hub: The external part of the catheter that connects to the administration set.
Flashback Chamber: A clear chamber at the back of the catheter where blood appears upon successful venipuncture, confirming intraluminal placement.
Introducer Needle (Stylet): The sharp steel needle inside the catheter that pierces the skin and vein.
Safety Retraction Device / Needle Protection: Mechanisms (e.g., spring-loaded shield, self-blunting tip) designed to cover or retract the needle immediately after removal from the vein, preventing needlestick injuries.
Needle Guard: Another term for the safety device that covers the sharp point of the needle after use.
Transparent Dressing (e.g., Tegaderm): A sterile, semi-permeable membrane that secures the catheter, allows for visualization of the site, and acts as a bacterial barrier.
Tape: To further secure the catheter and tubing.
Sterile Gauze: For applying pressure after catheter removal or to cover the site initially before applying the transparent dressing.
Saline Flush Syringe: Pre-filled normal saline syringe for flushing the catheter after insertion to check patency and compatibility.
Extension Tubing with Clamp: Optional, but often used to provide extra length and a more secure connection point away from the insertion site.
Choosing the Right Size Catheter
Gauge System: Catheter gauge refers to the diameter of the needle/catheter lumen; the smaller the gauge number, the larger the catheter diameter. This inversely proportional relationship is crucial for optimal flow rates and patient comfort.
Guidelines for Selection: Catheter length and gauge are selected based on the patient's age, vein size and condition, the type of solution to be infused, and the anticipated duration of therapy.
22-24 gauge (Smallest): Recommended for infants, pediatric patients, and older adult clients due to their smaller and more fragile veins. Also suitable for slow infusions of non-irritating solutions and routine maintenance fluids. A 24-gauge catheter is often preferred in neonates and infants to minimize trauma.
20 gauge (Standard): The most commonly used catheter size for a wide range of adult patients. It allows for adequate fluid administration rates, medication delivery, and can often be used for blood product transfusions (though policies may vary).
16-18 gauge (Largest): Utilized for situations requiring very rapid fluid replacement (e.g., trauma, hemorrhage, surgical procedures), high-viscosity fluid administration, or in conditions demanding quick access to the vascular system for large volumes of blood products. They require larger, more robust veins.
Evidence-Based Practice Alert: Always confirm institutional policy regarding the minimum catheter gauge required for blood product transfusions. While 20 gauge is often acceptable, some policies may recommend an 18 gauge or larger to minimize potential damage to red blood cells during infusion and ensure adequate flow rates, especially for rapid transfusions. Using too small a gauge for blood products can lead to hemolysis or sluggish flow.
Choosing the Right Site for IV Insertion
General Approach: The goal is to select a site that will maximize the longevity of the IV, minimize patient discomfort, and reduce the risk of complications.
Start with Distal Veins: Begin assessment at the most distal (furthest from the heart) veins in the upper extremities (hand or forearm) and work proximally. This approach "saves" more proximal veins for future access if the initial attempt fails or if the catheter needs to be reinserted later.
Prefer Non-Dominant Arm: Whenever possible, choose the non-dominant arm to allow the patient greater freedom and comfort for daily activities. However, if veins in the dominant arm are significantly better, it may be chosen.
Select Ideal Veins: Look for veins that are:
Large and Straight: To accommodate the catheter without kinking and ensure adequate blood flow around the catheter.
Palpable and Visible: Indicating good turgor and accessibility.
Bouncy and Resilient: Indicating healthy vessel walls, rather than hard, sclerosed, or thrombosed veins.
Well-Supported: Choose veins where bones or tissues can support the vein against the pressure of insertion and prevent rolling.
Veins and Areas to Avoid: Inserting an IV in certain locations or conditions can lead to increased risk of complications, patient discomfort, or compromise patient care.
Extremities with A-V Fistula or Graft: Absolutely avoid for cannulation, blood draws, or blood pressure measurement in the extremity with an arteriovenous (A-V) fistula or graft created for dialysis. This is crucial to preserve the patency and function of this vital access.
Side of Mastectomy: Avoid the arm on the side of a mastectomy, especially if lymph node dissection occurred, due to the increased risk of lymphedema and potential for infection.
Sites in Areas of Flexion: Avoid joints such as the antecubital fossa (inner elbow) or wrist. Movement at these sites can easily dislodge the catheter, increase the risk of phlebitis or infiltration, and cause significant patient discomfort. If used, ensure the arm is stabilized to prevent flexion.
Damaged or Tortuous Veins: Avoid veins that are scarred, bruised, thrombosed, sclerosed (hardened), or appear tortuous (winding). These veins are difficult to cannulate, can lead to quicker failure, and increase the risk of phlebitis.
Areas of Cellulitis, Dermatitis, or Infection: Never insert an IV through an area of active infection or inflammation, as this significantly increases the risk of introducing bacteria into the bloodstream.
Extremity with Lymphedema: Avoid due to increased risk of infection and delayed healing.
Pediatric Considerations
Psychological Preparation: Children often experience significant anxiety and fear regarding medical procedures, especially needle sticks.
Age-Appropriate Explanation: Use simple, honest language adapted to the child's developmental level.
Play Therapy: Utilizing dolls or stuffed animals to demonstrate the procedure can help demystify the process and allow the child to "play" the role of the patient or nurse, thus gaining a sense of control.
Distraction Techniques: Employing toys, games, videos, or parental presence during insertion can significantly reduce pain perception and anxiety.
Involve Parents: Parents are often a crucial source of comfort and can help hold and distract the child.
Physiological Differences:
Vein Selection: Pediatric veins are smaller, more delicate, and have less subcutaneous tissue support, making them more prone to rolling, infiltration, and phlebitis. Distal veins in the hand and arm are preferred, but scalp veins or foot veins may be considered in infants if arm access is not feasible.
Catheter Size: Use the smallest appropriate catheter size, typically 22-24 gauge, to minimize vein trauma.
Fluid Balance: Children, especially infants, have a higher proportion of body water and a faster metabolic rate, making them highly susceptible to fluid overload or dehydration. Precise fluid calculations and continuous monitoring of intake and output are critical.
Site Protection: Secure the IV site meticulously to prevent dislodgement, often requiring an arm board or specialized dressings. For infants and toddlers, a stockinette or protective wrapping might be necessary.
Documentation: Detailed documentation of IV site, gauge, type of fluid, and patient's tolerance is essential for ongoing care and early detection of complications.
Older Adult Considerations
Impact of Aging on Venous Access: Physiological changes associated with aging significantly affect IV insertion and management.
Fragile Skin: Older adults often have thinner, less elastic skin with reduced subcutaneous tissue, making it more prone to tearing and bruising. Use minimal tape after insertion, or hypoallergenic tape.
Vein Conditions: Veins can be more fragile, sclerosed, or roll easily. They may also be deeper or embedded in surrounding connective tissue, making them harder to palpate and visualize.
Increased Risk of Hematoma: Due to fragile vessels and sometimes anticoagulant use, hematoma formation is more common.
Compromised Circulation: Peripheral circulation may be diminished, affecting vein distention.
Co-morbidities: Chronic conditions (e.g., heart failure, renal insufficiency) affecting fluid balance necessitate careful monitoring to prevent fluid overload.
Techniques for Insertion:
Assess Vein Conditions Carefully: Thoroughly palpate for resilient, unhardened veins. Avoid veins that feel hard or cord-like.
Avoid or Loosen Tourniquet Use: A tight tourniquet can cause vein rupture or hematoma in fragile veins. Consider applying it loosely over the patient's sleeve or using a blood pressure cuff inflated to just below diastolic pressure to distend veins gently. Sometimes, simply lowering the extremity can be enough.
Anchor Vein Firmly: Use meticulous technique to anchor the vein above and below the injection site to prevent rolling.
Smaller Gauge Catheter: Often, a 22-24 gauge catheter is preferred to minimize trauma, even for routine adult infusions, considering vein fragility.
Fluid Administration: Close monitoring for signs of fluid overload (e.g., crackles in lungs, dyspnea, peripheral edema) is critical due to potentially reduced cardiac and renal reserve.
Patient Education: Provide clear, concise instructions, addressing potential hearing or vision impairments.
Factors to Consider for IV Site Selection
Comprehensive Criteria: A holistic assessment is essential to ensure optimal IV access and minimize risks.
Purpose of Therapy: The type of solution or medication. Vesicants and hypertonic solutions require central access or larger peripheral veins. Blood transfusions require specific gauges.
Anticipated Duration of Therapy: Short-term therapies (less than 4-7 days) are suitable for peripheral IVs. Longer-term therapies (weeks to months) necessitate midlines, PICCs, or other CVADs.
Patient Age: Influences vein size, skin integrity, and physiological tolerance (as discussed in pediatric and older adult considerations).
Vein Condition: Prioritize healthy, resilient veins. Avoid areas with scarring, bruising, inflammation, or phlebitis.
Patient Activity Level and Mobility: Choose a site that allows for patient movement without dislodging the catheter. Avoid sites in flexion if possible.
Patient Preference: While not the primary factor, consider patient input regarding comfort and previous insertion experiences.
Medical History: Any history of mastectomy, AV fistula, lymphedema, or clotting disorders should guide site selection.
Type of Fluid/Medication: High-volume, rapid infusions or irritating medications require larger, more robust veins or central access.
Continuous Evaluation and Observation:
Select Suitable Vein: Based on the above criteria, choose the best possible vein for the expected therapy.
Observe for Complications: Regularly assess the IV site for signs of local complications (e.g., pain, redness, swelling, streaking, coolness, blanching) and systemic complications (e.g., fever, chills, fluid overload symptoms). Prompt detection and intervention can prevent serious adverse events.
IV Insertion Procedure
Prerequisites: Ensure all equipment is gathered, the patient is identified, allergies are checked, and informed consent (implied or explicit) is obtained. Perform hand hygiene.
Vein Selection and Preparation:
Apply tourniquet 4-6 inches above the chosen site to distend veins.
Ask the patient to make a fist or lower the arm to increase venous filling. Percussion or warm compresses can also help.
Once a suitable vein is selected, release the tourniquet temporarily if needed, and prepare the site.
Aseptic Technique: This is the cornerstone of infection prevention during IV insertion.
Hand Hygiene: Perform thorough hand hygiene (handwashing or alcohol-based hand rub).
Sterile Gloves: Don sterile gloves before touching the insertion site after cleansing.
Skin Antisepsis: Vigorously scrub the insertion site with an appropriate antiseptic solution (e.g., chlorhexidine with alcohol) for at least 30 seconds. Allow the solution to air dry completely (e.g., 15-30 seconds, depending on product) to ensure maximum antimicrobial effect before venipuncture. Do not fan or blot.
Cannulation:
Reapply the tourniquet.
Anchor the vein tautly below the insertion site with your non-dominant thumb to prevent rolling.
Insert the catheter, bevel up, at a angle, directly over or slightly to the side of the vein.
Observe for "flashback" of blood in the flashback chamber, indicating successful venipuncture.
Lower the angle and advance the catheter a few more millimeters to ensure the catheter tip is fully within the vein lumen.
Advance the catheter into the vein while simultaneously withdrawing the introducer needle into the safety device. Never reinsert the needle into the catheter once it has been removed, as this can shear off the catheter tip.
Activate the safety mechanism on the needle and immediately discard it into a sharps container.
Release the tourniquet.
Apply pressure above the catheter tip to prevent blood leakage, and quickly connect the extension tubing and flush with normal saline to check patency. Observe for swelling or discomfort.
Securement and Dressing:
Secure the catheter with a sterile transparent semi-permeable dressing.
Loop and tape the IV tubing to prevent tension on the catheter.
Documentation Requirements: Comprehensive documentation is vital for continuity of care and legal purposes.
Date and Time of Insertion:
Gauge and Length of Catheter: (e.g., "Right forearm, 20 gauge, 1 inch")
Location of Insertion:
Type of Dressing Applied:
Number of Insertion Attempts: And the outcome of each attempt.
Client's Tolerance: Note any pain or discomfort.
Type and Flow Rate of IV Fluid: If initiated immediately.
Who Performed the Procedure: And any assistants.
Condition of Site: (e.g., "Site patent, no redness or swelling.")
Discontinuing IV Therapy
Indications: IV therapy is discontinued when the prescribed course of treatment is complete, the IV is no longer patent, complications occur, or a change in therapy requires a different access.
Preparation:
Gather supplies: clean gloves, sterile gauze, tape (optional).
Explain the procedure to the patient.
Perform hand hygiene and don clean gloves.
Close any clamps on the IV tubing and disconnect the infusion set from the catheter hub.
Steps:
Remove Securing Tape and Dressing: Carefully and gently peel off the securing tape and transparent dressing while stabilizing the catheter hub to prevent accidental pulling or tearing of the skin. Use an alcohol wipe or adhesive remover if necessary to loosen the tape.
Withdraw Catheter and Apply Pressure: Place a sterile gauze pad directly over the insertion site and apply firm, direct pressure as you smoothly and steadily withdraw the catheter from the vein in a straight line, parallel to the skin.
Maintain Pressure: Continue to apply firm pressure to the site for 2-3 minutes (or longer for patients on anticoagulants, typically 5-10 minutes) to prevent hematoma formation. Elevating the extremity can also help.
Inspect Catheter Tip: Visually inspect the removed catheter tip to ensure it is intact. A broken catheter tip can migrate into the bloodstream, posing a serious embolism risk. If the catheter tip is not intact, immediately notify the healthcare provider, monitor the patient for signs of embolism (e.g., chest pain, shortness of breath, sudden anxiety), and document findings thoroughly.
Site Assessment and Dressing: Once hemostasis is achieved, apply a small adhesive bandage or clean gauze and tape over the site. Instruct the patient to keep the site clean and dry for 24 hours and to report any redness, swelling, pain, or bleeding.
Documentation: Record the date and time of discontinuation, the reason for removal, condition of the catheter tip, condition of the site, and patient tolerance.
IV Solutions: Checks Before Use
Seven Rights of Medication Administration: Prior to administering any IV solution, nurses must adhere to the "seven rights" (right patient, right drug, right dose, right route, right time, right documentation, right reason) with an additional focus on IV-specific checks.
Solution Integrity Checks: Visually inspect the solution bag or bottle meticulously for potential issues that could compromise patient safety or efficacy.
Confirm Expiration Date: Crucial to ensure drug potency and sterility. Never use expired solutions.
Inspect for Imperfections or Leaks: Check the bag/bottle for any punctures, cracks, or signs of leakage, which indicate a breach in sterility.
Assess for Cloudiness or Particulates: The solution should be clear. Any cloudiness, discoloration, or visible particulate matter indicates contamination, precipitation, or degradation, and the solution must be discarded.
Ensure Volume Correlation with Orders: Verify that the volume of the solution in the bag (e.g., 500 mL, 1000 mL) matches the healthcare provider's order.
Check for Drug Compatibility: If medications are to be added to the IV solution, ensure compatibility to prevent precipitation or inactivation.
Verify Name and Concentration: Double-check the solution name and concentration against the order (e.g., Normal Saline vs. D5W, or Normal Saline).
Calculate Flow Rate (if applicable): Based on the ordered volume and time, calculate the correct infusion rate in mL/hr or drops/min.
Patient Assessment: Before initiating, assess the patient's hydration status, electrolyte balance, and any contraindications or specific needs that might influence fluid choice or rate.
Types of IV Fluids
IV fluids are categorized based on their tonicity, which refers to the concentration of solutes in the solution relative to the concentration of solutes in the plasma (approximately 275-295 mOsm/L). This determines how fluid will shift between the intravascular and intracellular compartments.
Hypotonic Solutions:
Osmolarity: Have a lower osmolarity than serum (less than 275 mOsm/L).
Effect on Cells: When infused, they cause fluid to shift out of the vascular compartment and into the cells (intracellular and interstitial spaces) to rehydrate them. This can deplete intravascular volume.
Examples:
Sodium Chloride (Half-normal saline): Provides free water, sodium, and chloride. Used to treat hypertonic dehydration.
Sodium Chloride: Even more hypotonic.
Dextrose in Water (D5W) becomes hypotonic in the body as dextrose is rapidly metabolized, leaving free water.
Caution: Can cause cellular swelling, leading to cerebral edema (especially in patients with head injury) or cardiovascular collapse due to intravascular depletion.
Isotonic Solutions:
Osmolarity: Have an osmolarity approximately equal to serum (275-295 mOsm/L).
Effect on Cells: Primarily remain within the extracellular compartment (intravascular and interstitial spaces) and do not cause significant fluid shifts into or out of cells. They are used to expand the intravascular volume.
Examples:
Sodium Chloride (Normal Saline): The most common isotonic solution; it provides sodium and chloride. Used for fluid resuscitation.
Lactated Ringer's (LR): Contains sodium, chloride, potassium, calcium, and lactate (which is metabolized to bicarbonate). Closely resembles the electrolyte composition of plasma.
Dextrose in Water (D5W): Isotonic in the bag, but physiologically hypotonic once dextrose is metabolized. Used for fluid resuscitation, but less effective for significant volume expansion.
Caution: Can cause fluid overload, especially in patients with heart failure or renal insufficiency. Normal Saline can lead to hyperchloremic acidosis with large volumes.
Hypertonic Solutions:
Osmolarity: Have a higher osmolarity than serum (greater than 295 mOsm/L).
Effect on Cells: When infused, they cause fluid to shift from the cells (intracellular and interstitial spaces) into the vascular compartment. This effect increases intravascular volume and can reduce cellular edema.
Examples:
or Sodium Chloride (Hypertonic Saline): Highly concentrated saline solutions.
Dextrose in Water (D10W).
Dextrose in Sodium Chloride ().
Dextrose in Sodium Chloride (D5NS).
Caution: Must be administered slowly and cautiously, often through a central line, as they can cause severe dehydration of cells, hypernatremia, and fluid overload (pulmonary edema) if given too rapidly or in excessive amounts. Close monitoring of electrolyte levels is crucial.
Conditions Indicating Fluid Types
Hypotonic Fluid Indications:
Dehydration with High Serum Sodium (Hypernatremia): When cells are dehydrated due to high extracellular sodium (e.g., from excessive fluid loss without adequate water intake, or diabetes insipidus). Hypotonic solutions help rehydrate the cells.
Diabetic Ketoacidosis (DKA) after initial isotonic resuscitation: Once blood glucose levels decrease with insulin and hydration is partially restored, hypotonic fluids (e.g., NS) may be used to gradually rehydrate cells and correct hyperosmolarity, preventing rapid shifts that could lead to cerebral edema.
Hyperosmolar Hyperglycemic State (HHS): Similar to DKA, after initial stabilization with isotonic fluids.
Maintenance Fluid: Some hypotonic solutions (like D5W after dextrose is metabolized) can be used as maintenance fluids to provide free water.
Contraindications: Never administer to patients at risk for increased intracranial pressure (ICP), severe burns, trauma, or third-space fluid shifts due to risk of worsening cerebral edema or hypovolemic shock.
Isotonic Fluid Indications:
Isotonic Fluid Replacement for Hypovolemia: The primary use is to expand the extracellular fluid volume in situations of fluid loss, without causing fluid shifts into or out of cells. This includes:
Hemorrhage: Significant blood loss.
Severe Vomiting or Diarrhea: Leading to significant volume depletion.
Severe Dehydration: Particularly when electrolytes are also lost in proportion to water.
Burns: Extensive fluid loss from compromised skin barrier.
Surgical Procedures: To maintain adequate circulating blood volume.
Shock (various types): To restore intravascular volume.
Medication Diluents: Normal Saline is a common diluent for many medications.
Blood Transfusions: Normal Saline is the only solution compatible with blood products.
Contraindications: Use cautiously in patients with heart failure, renal insufficiency, or at risk for fluid overload, as it can worsen these conditions.
Hypertonic Fluid Indications:
Severe Symptomatic Hyponatremia: When serum sodium is dangerously low, and the patient shows neurological symptoms (e.g., seizures, altered mental status). Hypertonic saline (e.g., NaCl) is used to draw water out of brain cells, reducing swelling and raising serum sodium levels cautiously. Rapid correction can lead to osmotic demyelination syndrome.
Elevated Intracranial Pressure (ICP): Hypertonic solutions (e.g., NaCl, mannitol) are used to draw fluid from brain tissues into the vascular compartment, thereby reducing cerebral edema and ICP. Careful neurological monitoring is critical.
Cerebral Edema (Non-traumatic or Traumatic): To reduce fluid accumulation in the brain.
Circulatory Instability with Edema: In situations where patients have severe edema (e.g., ascites or peripheral edema) but are also hypovolemic, hypertonic solutions can help draw fluid back into the vascular space while minimally adding to total body water.
Contraindications: Not for routine hydration or in patients with cardiac or renal impairment where fluid overload is a significant risk. Contraindicated in diabetic ketoacidosis (except as extremely rare interventions for severe cerebral edema). Risk of central venous access phlebitis if given peripherally.
Complications of IV Therapy
IV therapy, while essential, carries inherent risks. Prompt identification and management of complications are crucial for patient safety.
Local Complications: Occur at or near the insertion site.
Phlebitis: Inflammation of the vein wall.
Infiltration: Non-vesicant IV fluid leaks into interstitial tissue.
Extravasation: Vesicant IV solution or medication leaks into interstitial tissue, causing tissue damage.
Hematoma: Blood leaks from the venipuncture site into surrounding tissue, forming a bruise.
Thrombosis: Formation of a blood clot within the vein, often at the catheter tip due to trauma or inadequate blood flow around it.
Local Infection: Bacterial contamination at the insertion site, leading to redness, warmth, pain, and pus.
Venous Spasm: Sudden, involuntary contraction of the vein wall, often due to irritation from cold fluids or rapid infusion.
Systemic Complications: Affect the entire body and can be life-threatening.
Fluid Overload (Circulatory Overload): Administration of fluids too rapidly or in excessive amounts, leading to increased intravascular volume.
Air Embolism: Air enters the bloodstream through an open IV line, during insertion/removal of central lines, or through a disconnected line.
Catheter-Related Bloodstream Infection (CRBSI): Systemic infection originating from microorganisms on the catheter, leading to bacteremia or sepsis.
Allergic Reaction: Systemic response to IV medications or components (e.g., latex), ranging from rash to anaphylaxis.
Speed Shock: Systemic reaction to a foreign substance (medication) administered too rapidly into the bloodstream, causing a sudden flush, headache, and severe cardiovascular symptoms.
Nursing Actions:
Prevention: Adhere strictly to aseptic technique, proper site selection, appropriate catheter size, secure dressing, regular site assessment, and correct fluid/medication administration.
Prompt Execution: For complications like phlebitis, infiltration, or extravasation, immediate action is required to prevent further injury, discomfort, and potentially severe tissue damage. This includes stopping the infusion, removing the catheter (for phlebitis/infiltration), administering an antidote (for extravasation if available), applying compresses, and elevating the extremity. For systemic complications, rapid assessment and immediate medical intervention are critical (e.g., Trendelenburg position for air embolism, diuretics for fluid overload).
Documentation: Thoroughly document all complications, interventions, and patient responses.
Summary of Complications (Detailed Management)
Phlebitis:
Description: Inflammation of the inner lining of the vein (intima). Can be chemical (irritating solution), mechanical (catheter friction), or bacterial (infection).
Signs & Symptoms: Localized pain, tenderness, warmth, redness/erythema along the path of the vein, and a palpable cord-like structure.
Management:
Stop the infusion immediately.
Remove the IV catheter.
Apply a warm, moist compress to the inflamed area to promote circulation and comfort.
Elevate the extremity.
Administer analgesics as needed.
Document findings and interventions, and monitor for resolution or worsening (e.g., pus, fever, indicating infection).
Restart IV in a different extremity, preferably using a smaller gauge catheter and selecting a larger vein.
Infiltration:
Description: The accidental leakage of non-vesicant IV fluid and/or medication from the vein into the surrounding interstitial tissue.
Signs & Symptoms: Swelling, coolness to touch, pallor/blanching around the insertion site, pain or discomfort, feeling of tightness, absence of blood return (though not always reliable), and a sluggish or stopped flow rate.
Management:
Stop the infusion immediately.
Remove the IV catheter.
Elevate the affected extremity to promote reabsorption of fluid.
Apply either a warm or cool compress depending on the infusate and institutional policy (warm to promote circulation, cool to reduce swelling; warm is generally preferred to aid absorption).
Do NOT rub the area, as this can worsen tissue damage.
Restart the IV in a different site, preferably in the opposite extremity or proximal to the infiltration site in the same limb, if healthy veins are available.
Document the infiltration, including the amount and type of fluid, appearance of the site, and nursing interventions.
Extravasation:
Description: A more serious form of infiltration where a vesicant (solution capable of causing blistering, tissue necrosis, or sloughing) or an irritating medication leaks into the surrounding tissue.
Signs & Symptoms: Similar to infiltration but often more severe: stinging, burning pain, redness, swelling, blistering, tissue necrosis, and potential for permanent disfigurement or loss of function.
Management: IMMEDIATE INTERVENTION IS CRITICAL.
STOP the infusion immediately but DO NOT remove the catheter initially (unless contraindicated by specific antidote instructions).
Aspirate any remaining medication from the catheter lumen and the subcutaneous tissue through the catheter itself.
Once aspiration is complete, remove the catheter unless an antidote (e.g., hyaluronidase for some medications, phentolamine for vasopressors) needs to be injected directly into the extravasated area through the existing catheter or multiple subcutaneous injections.
Administer the specific antidote if available, following institutional guidelines.
Apply appropriate compresses (warm or cold, based on medication type).
Elevate the extremity.
Notify the healthcare provider and pharmacy immediately.
Document meticulously, including photos if policy allows, and initiate incident reporting.
Fluid Overload (Circulatory Overload):
Description: A systemic complication caused by infusing fluids too rapidly or in excessive volumes, leading to hypervolemia.
Signs & Symptoms: Shortness of breath, dyspnea, crackles/rales in the lungs, peripheral edema, bounding pulse, distended neck veins, elevated blood pressure.
Management:
Slow the infusion rate or stop the infusion immediately, depending on severity.
Elevate the patient's head of bed.
Notify the healthcare provider.
Administer diuretics as ordered.
Monitor vital signs, oxygen saturation, and lung sounds closely.
Air Embolism:
Description: Entry of air into the venous system, which travels to the right side of the heart and obstructs pulmonary blood flow (pulmonary embolism). A rare but potentially fatal systemic complication.
Signs & Symptoms: Sudden dyspnea, chest pain, shoulder or back pain, cyanosis, hypotension, weak rapid pulse, loss of consciousness, "millwheel" murmur heard over the pericardium.
Management: EMERGENCY ACTION REQUIRED.
Immediately clamp the IV catheter/tubing.
Place the patient in the left Trendelenburg position (lying on left side, head down) to trap air in the right ventricle, preventing it from entering the pulmonary circulation.
Administer oxygen.
Notify the healthcare provider immediately and call for assistance.
Monitor vital signs and prepare for advanced cardiac life support.
Nursing Considerations (General):
Vigilance with IV Site Assessments: Perform routine, thorough assessments of all IV sites (peripheral and central) at least every 4 hours, and more frequently for high-risk patients or irritating infusions. Look, feel, and ask the patient about discomfort.
Documentation: Meticulous and timely documentation of all IV insertions, maintenance care, fluid administration, complications, and interventions is legally and clinically essential.
Infection Prevention: Strict adherence to hand hygiene, aseptic technique during insertion and dressing changes, and site care protocols are paramount to prevent local and systemic infections. Educate patients on recognizing signs of infection.
Additional Considerations
Blood Pressure Measurement: Never take blood pressure in an arm with an active IV infusion or on the same side as a PICC line or other central venous access device inserted peripherally on that limb. The pressure from the BP cuff can compromise blood flow, cause the IV to infiltrate, damage the vein, or dislodge the catheter. If necessary, use the other arm or a lower extremity after assessing for contraindications (e.g., DVT, peripheral arterial disease).
Restraints Over IVs: Avoid applying physical restraints directly over an IV site or the IV tubing. This can cause pressure against the catheter, leading to infiltration or phlebitis, obstruct fluid flow, or even damage the tubing. If restraints are required, ensure they are placed safely away from the IV site and allow for adequate circulation and access for site assessment. Consider alternative sites if restraints are anticipated.
Managing Flexed Extremities: When an IV must be placed in an area of flexion (e.g., antecubital fossa, wrist, hand joint), specific measures are required to ensure catheter patency and patient comfort.
Stabilization: Use an arm board or splint to keep the joint extended and minimize movement that could kink, occlude, or dislodge the catheter.
Patient Education: Instruct the patient on avoiding excessive flexion and to report any pain or changes in the infusion immediately.
Frequent Assessment: Assess these sites more frequently due to the higher risk of complications.
Patient Mobility: Encourage patient mobility when safe and appropriate, ensuring IV poles are within reach and tubing is long enough to prevent accidental dislodgement.
Pump Alarms: Respond promptly to IV pump alarms to prevent interruptions in fluid/medication delivery and to identify potential issues like occlusions or air in the line.
Safety and Sharps Disposal: Always activate safety mechanisms on needles and immediately discard all sharps into an appropriate sharps container after use to prevent needlestick injuries.