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What is dehydration
Loss of water without proportional loss of electrolytes leading to increased serum osmality and cellular shrinkage
What is hypovolemia
Loss of water and electrolytes (isotonic fluid deficit) from the extracellular fluid, reducing circulating blood volume and cardiac output
What are the cardiovascular signs of hypovolemia
Tachycardia, hypotension, orthostatic hypotension, weak pulse, flat elk veins, delayed cap refill.
What are the respiratory signs of hypovolemia
Tachypnea and dyspnea
What are the renal signs of hypovolemia
Oliguria/decreased urine out put and dark yellow concentrated urine
What ate the skin and mucous membrane signs of hypovolemia
Cool, clammy, pale skin, poor skin turgor and dry mucous membranes
What are the lab changes that occur during dehydration and hypovolemia due to hemoconcentration
Increased hematocrit, increased BUN, increased urine specific gravity, increased blood osmolalit and elevated serum sodium
What i the “F’ in FILL IT for hypovolemia
Find the cause- identify and stop fluid loss (hemmorrage, vomitting, diarrhea, burns and NG suction)
What is the “I” in FILL IT for hypovolemia
Increase circulating volume- administer isotonic IV fluids via large bore IV; give blood products if bleeding
What is the first L in FILL IT for hypovolemia
Look at urin output: target >30 mL/hr
What is the second L in FILL IT for hypovolemia
Look at vital signs and perfusion- monitor BP, HR cap refill and mental status
What is the second I in FILL IT hypovolemia
Improve oxygen delivery- administer oxygen as prescribed, position for optimal breathing and promote rest
What is the “T” in FILL OIT for hypovolemia
Treat the cause continuously: provide ongoing treatment to prevent recurrence
Why are older adults at a significantly higher risk for dehydration?
-decrease in total body water percentage
-decrease kidney blood floe and reduced renal concentrating ability
-diminished thirst sensation and higher prevalence of chronic conditions/ diuretic use
What are the cardiovascular clinical manifestations of hypervolemia across body systems?
Bounding pulse, hypertension, tachycardia, elevated CVP and JVD
What are the respiratory clinical manifestations of hypervolemia across body systems?
Moist crackers in lungs, dypnea, orthopnea and cough
What are the mueromuscular clinical manifestations of hypervolemia across body systems?
Headaches, confusion, weakness
What are the GI clinical manifestations of hypervolemia across body systems?
As cites, parasites is and increased bowel motility
What are the edema clinical manifestations of hypervolemia across body systems?
Dependent pitting edema
What are the manifestations in weight with hypervolemia
Rapid weight gain
What lab findings are seen in hypervolemia due to hemodilution
Decreased hematocrit and hemoglobin, decreased blood osmolality, decreased urine specific gravity, decreases BUN
What are the primary nursing interventions for managing hypervolemia
-position in semi Fowler or Fowler position to ease breathing
-administer oxygen as prescribes nd monitor breathing for crackles
-enforce fluids and sodium restrictions
-and minister prescribed diuretics
What rate the signs of pulmonary edema
Severe dypnea, tachypnea, anxiety
Moist crackles, pink frothy sputum and decreased LOC
What to do if you notice signs of pulmonary edema
High Fowler position, administer high Flow oxygen, notify provider immediately, adminsister prescribed diuretics and prepare for intubation if needed
Sodium imbalances affect what first
The brain
Water… with hyponatremia
Moves INTO cells
Water… with Hypernatremia
Water moves OUT of the cells
What are the causes of hyponatremia
Diuretics, vomitting, diarrhea, heart failure, excessive hypotonic fluids
What are the SALT signs for hyponatremia
Seizures and stupor
Abdominal cramping and hyperactive bowel sounds
Lethargy
Tendon reflexes decreased
What is the critical safety correction rate from hyponatremia
Do not increase serum sodium by more than. 10-12 men/L in 24 hours to prevent permanent brain damage
What are the causes of hypernatremia
Dehydration, Diabetes inspires, fever, eat exposure, Cushing, excessive sodium intake
What are the “FRIED” signs of hypernatremia
Fatigue,
restlessness,
increased reflexes,
extreme thirst,
dry mouths and skin
What are the treatments for hypernatremia
Replace water slowly using hypotonic IV solutions, restricts sodium intake, monitor numerous status and treat underlying cause
What is the ATI NCLEX rule for potassium imbalances
Potassium problems kill the heart first
What happens to the heart with low K+
Muscles become weak; heart becomes irritable
What happens to the heart with high K+
Heart cannot maintain a steady beat which leads to a high risk for cardiac arrest
What are the 7 signs (7L’s) for Hypokalemia
Lethargy, Low respirations, Letha; cardiac rhythms, lots of voiding, leg cramps, limp muscles, Low BP and HR
What are the ECG changes of hypokalemia
Flattened T waves, ST depression, prominent. U waves
What are the treatments of hypokalemia
Give oral K+ with food, administer IV K+ infusion for levels <2.5 mEq/L.
What is the ABSOLUTE SAFETY RULE for IV potassium administration
Never administer potassium via IV push, IM or subcutaneous injections. It must be diluted and given as a controlled IV infusion using an infusion pump
What are the causes of hyperkalemia
Kidney failure, K+ sparing diuretics, ACE inhibitors, burns, DKA
What are the signs of hyperkalemia “DEATH”
Deacreased HR
Early muscle twitching weakness
Arrhythmias
Tummy trouble
Hypotension
What are the ECG changes of hyperkalemia
Tall peaked T waves, Flat P wave, Prolonged PR interval, Widened QRS complex
What is the 3 step emergency treatment sequence for hyperkalemia
Protect the heart- administer Calcium Gluconate IV to stabilize cardiac cell membranes
Shift K+ into cells- administer regular insulin and Dextrose
Remove K+ from the body- administer loop diuretics (furosemide), Kayexalate to perform dialysis
What are he reference ranges and ATI NCLEX rules for Calcium
(9.0-10.5 mg/dL) -calcium problems make your muscles twitch
What are the reference ranges and ATI NCLEX rules for magnesium
(1.3-2.1 mEq/L) magnesium problems make nerves unstable when low and sluggish when high
What are the signs of hypocalcemia
Numbness/tingling around mouth and fingertips, muscle cramps, tetany ,respiratory distress and siezurs
What are the causes of hypocalcemia
Thyroid and parathyroid surgery, vitamin D deficiency, chronic kidney disease, pancreatitis, massive blood transfusions
What are the ECG changes with hypocalcemia
Prolonged QT interval
How do you perform chvosteks sign
Lightly tap the facial nerve just in front of the ear
How do you interpret a positiv chvosteks sign
Twitching of facial muscles on the same side
What is a positive chvosteks sign indicative of
Nueromuscular excitability due to hypocalcamia
How do you perform trousseau’s sign
Inflate a blood pressure cuff on the upper arm to 20 mmHg above clients systolic BP snd hold for 3 minutes
What is a positive Trousseus sign
Carpopedal spasm (wrist flexion)
What os a positive trousseaus sign indicative of
Nueromuscular excitability due to hypocalcemia
What is the treatment and nursing care for hypocalcemia
Administer calcium gluconate IV slowly, give oral calcium and vitamin D, seizure and fall precautions and monitor ECG
What are the causes of hypomadnesemia
Chronic alcoholism, malnutrition, diarrhea, chronic, loop diuretics, PPI’s
Signs of hypomagnesemia
Tremors, muscle spasms, tetanus , positive chvosteks and troussseaus signs, insomnia, seizures, hypertension
Dangerous cardiac rhythms associated with hypomagnesemia
Tornadoes de pointes and Letha; dysrhythmias
How is magnesiun sulfate administered
Give IV magnesium sulfate slowly (1-2 g over 1 hour)
How do you monitor for magnesium toxicity
Continuously check DTRs and decrease or absent DTRs indicate magnesium toxicity
How big is a is an orange colored IV needle and what is it used for
14 gauge and its used for Trauma, surgery, resuscitation and rapid fluid or massive blood transfusion
How big is a green colored iv needle and what is it used for
18G and it’s used blood transfusions, rapid fluids, CT pE protocols
How big is a pink colored iv needle and what is it used for
Standard routine IV fluids and medications and blood transfusions
How big is a blue colored Iv needle and what is it used for
22 G and it is used for routine IV fluids meds ; preferred for elderly/fragile veins
How big is a yellow iv needle and what is it used for
24G and it is used for PEDs or elderly individuals
What are the 7 things that need to be documented following PIV insertion
Date and time
Specific location
Catheter size
Dressings type
Solution and flow rate
number of intention atttempts
Client response and tolerance
What is the osmolality in isotonic IV fluids
275 to 295 moms/L (same as blood)
What is the fluid shift in isotonic Iv fluids
No net fluid movement; stays in the vascular space
What is the osmolality if hypotonic IV fluids
< 275 moms/L (lower than blood)
What is the fluid shift in hypotonic IV fluids?
Water moves from vascular space Into cells
What is the osmolality of hypertonic IV fluids
295 moms/L
What is the fluid shift in hypertonic IV fluids
Water moves out of cells into the vascular space
What are colloid solutions and when are they used
Large protein molecules that cant cross capillary membranes and they pull water into the bloodstream
What is infiltration
Leakage of non-vesicant IV fluid into tissue
What is extravasation
Leakage of vesicant fluid into tissue
What are the signs of phlebitis
Pain, tenderness, warmth, redness along vine track
Treatment of phlebitis
Stop infusion immediately, remove catheter and apply a warm compress
Prevention of phlebitis
Change PIV site every 72 hours or per policy
What are the signs of fluid overload from IV therapy
JVD, increased BP, SOB, crackles in lungs and tachycardia
What are the actions to help fluid overload
Slow IV rate, raise head of bed, monitor O2 lung sounds, notify provider, administer diuretics
What are the signs if catheter embolus
Sudden chest pain, dypnea, tachycardia, cyanosis, hypoxia
What are the actions to help catheter embolus
Apply tourniquet high on extremity above insertion site, prepare for diagnostic X-Ray
What special needle is required to access and implantable Port
A non- coring Huber needle