Patient Care and Education

Legal and Ethical Aspects

I. PATIENT’S RIGHTS

A. PATIENT CONSENT

1⃣ Definition

Patient consent is the voluntary agreement of a competent individual to undergo a proposed medical procedure after receiving adequate information.

It is both:

• A legal requirement

• A professional ethical obligation

2⃣ Types of Consent

1. Verbal Consent

• Spoken agreement

• Used for low-risk procedures (e.g., routine radiographs)

2. Written Consent

• Required for procedures involving greater-than-usual risk

• Examples:

  • Invasive vascular studies

  • CT/MRI with contrast

  • Interventional procedures

3. Implied Consent

• Assumed through patient actions or emergency circumstances

• Example:

  • Unconscious trauma patient requiring immediate life-saving care

3⃣ Conditions for Valid Consent

For consent to be legally valid, ALL must be present:

1. Patient must be of legal age.

2. Patient must be of sound mind.

3. Consent must be given freely (no coercion).

4. Patient must be adequately informed.

If anyone is missing → consent is invalid.

4⃣ Informed Consent Includes:

• Nature of procedure

• Risks

• Benefits

• Alternatives

• Consequences of refusal

The radiographer must:

• Ensure patient understanding

• Answer questions clearly

• Document appropriately

A signed form does NOT automatically equal informed consent.

5⃣ Withdrawal of Consent

A patient may withdraw consent at any time — even after signing.

Proceeding despite refusal = Battery (Intentional Tort)

B. PATIENT PRIVACY

1⃣ Legal Foundation

Governed by the Health Insurance Portability and Accountability Act (HIPAA).

HIPAA protects:

• Electronic records

• Paper records

• Oral communications

Any individually identifiable health information is protected.

2⃣ Key Principles

• Access is limited to authorized personnel.

• Password-protected systems ensure confidentiality.

• Conversations must occur in private settings.

• Disclosure only:

  • When legally required

  • For patient welfare

3⃣ Violations Include:

• Discussing cases publicly

• Sharing information with unauthorized individuals

• Posting patient details on social media

• Leaving charts visible in public areas

Violation may result in:

• Termination

• Lawsuit

• ARRT sanction

C. PATIENT’S BILL OF RIGHTS / PATIENT CARE PARTNERSHIP

Historical Basis

Originally introduced by the American Hospital Association (AHA) as the Patient’s Bill of Rights.

Later replaced with:

The Patient Care Partnership

Core Patient Rights

Patients have the right to:

1. Considerate and respectful care

2. Complete and understandable information

3. Refuse treatment

4. Advance directive

5. Privacy

6. Confidentiality

7. Access medical records

8. Appropriate and medically indicated care

9. Transparency in institutional relationships

10. Consent or decline research participation

11. Continuity of care

12. Information on hospital policies

Patient Care Partnership Focus Areas

Patients should expect:

• High-quality hospital care

• Clean and safe environment

• Involvement in care decisions

• Protection of privacy

• Discharge instructions

• Billing assistance

D. ADVANCE HEALTH CARE DIRECTIVE / LIVING WILL

A legal document that:

• Preserves patient autonomy

• Name a surrogate decision-maker

• May include:

  • DNR (Do Not Resuscitate)

  • DNI (Do Not Intubate)

  • End-of-life preferences

This applies when the patient lacks decision-making capacity.

II. LEGAL ISSUES IN RADIOLOGY

A. X-RAY EXAM REQUESTS

Requisition Must Include:

• Patient’s full identification

• Admitting physician

• Type of examination

• Pertinent clinical information

• Infection control status

• Mode of transport

Radiographer’s Responsibility

Before imaging:

1. Verify patient identity.

2. Review the request carefully.

3. Clarify vague terms (“arm,” “leg”).

4. Resolve conflicting information.

5. Confirm pregnancy status when applicable.

Failure to verify = negligence.

III. LAW AND MEDICOLEGAL PRINCIPLES

A. Sources of Law

1. Constitution

2. Statutory Law (legislative bodies)

3. Administrative Regulations

4. Court Decisions (Common Law)

B. Types of Law

Public Law

Regulates the relationship between individuals and the government.

Private (Civil) Law

Regulates relationships among individuals.

Radiology litigation usually falls under civil law.

IV. TORTS

A tort is a private or civil wrong for which compensation may be sought.

A. Intentional Torts

Deliberate acts violating patient rights.

Examples:

1⃣ Assault

Threat of harm.

2⃣ Battery

Unauthorized physical contact.
Example:

• Performing the exam after refusal.

3⃣ False Imprisonment

Illegal restraint or restriction of freedom.

4⃣ Defamation

Damage to reputation.

• Spoken = Slander

• Written = Libel

5⃣ Invasion of Privacy

Unauthorized disclosure of confidential information.

B. Negligent Torts (Malpractice)

Unintentional failure to meet the standard of care.

Four Elements Required for Negligence

1. Duty

2. Breach

3. Injury

4. Causation

All four must be proven.

Common Negligence in Radiology

1. Patient falls

2. Positioning injuries

3. Failure to assess pregnancy

4. Wrong patient imaging

5. Wrong limb imaging

6. Errors/delays in diagnosis

Legal Doctrines

Res Ipsa Loquitur

“The thing speaks for itself.”
Injury clearly implies negligence.

Example:
Wrong limb imaged.

Respondeat Superior

“Let the master answer.”
Employer is liable for the employee’s actions within the scope of employment.

V. ARRT STANDARDS OF ETHICS

Issued by the American Registry of Radiologic Technologists (ARRT).

Two Parts

1⃣ Code of Ethics (Aspirational)

Guidelines for professional conduct.

Focuses on:

• Dignity

• Respect

• Competence

• Radiation protection

• Continuing education

• Confidentiality

It guides behavior but does not directly punish.

2⃣ Rules of Ethics (Enforceable)

Mandatory minimum standards.

Violation can result in:

• Reprimand

• Suspension

• Revocation

• Ineligibility

HIGH-YIELD RULES TO MASTER

• Fraud/deceit in certification

• Subverting the examination process

• Criminal convictions (must report)

• Failure to report coworker violation (Rule 21)

• Failure to report errors (Rule 22)

• Sexual misconduct

• Fraudulent billing

• Practicing outside the scope

• Failure to maintain patient records

• False documentation

Important:
Actual patient injury does NOT need to occur for a violation.

VI. HIGH-RISK LITIGATION AREAS

Memorize these:

1. Patient falls

2. Pregnancy exposure

3. Positioning injuries

4. Errors/delays in diagnosis

Board examiners repeatedly test these.

VII. PROFESSIONAL STANDARD OF CARE

Defined as:

The level of expertise and care that a reasonably competent radiographer would provide under similar circumstances.

Deviation = breach = possible negligence.

VIII. EXAMINER INSIGHT

When solving board questions:

Ask yourself:

1. Was consent valid?

2. Was confidentiality violated?

3. Was there unauthorized touching?

4. Was the standard of care breached?

5. Were all four negligence elements present?

6. Does the employer share liability?

7. Which ARRT rule applies?

Think legally, not emotionally.

FINAL MASTER SUMMARY

If you deeply understand:

• Valid consent

• HIPAA confidentiality

• Intentional vs. Negligent Torts

• Four negligence elements

• Res ipsa loquitur

• Respondeat superior

• ARRT Code vs Rules

You will dominate this topic.

Patient Communication and Safety

I. COMMUNICATION WITH PATIENTS

A. PATIENT IDENTIFICATION (CRITICAL SAFETY STEP)

Accurate patient identification is the first and most essential step in preventing medical errors.

🔹 Proper Identification Protocol:

1. Call patient privately (avoid loud name-calling in crowded waiting areas).

2. Check wristband.

3. Ask for a second identifier:

   • Full name

   • Date of birth (preferred)

   • Hospital ID number

⚠ Never ask: “Are you Mr. Cruz?”
Instead ask: “Please state your full name and date of birth.”

Failure in identification may lead to:

• Wrong-patient imaging

• Wrong-site examination

• Legal liability

B. REVIEW OF REQUISITION

Radiologic examinations may be requested by:

• Physician

• Physician Assistant

The radiographer must:

• Carefully review the request form

• Check for:

  • Complete patient information

  • Pertinent diagnostic data

  • Infection control/isolation status

  • Correct body part and laterality

• Clarify vague or conflicting information before proceeding

⚠ It is the radiographer’s legal and professional responsibility to clarify unclear orders.

C. REVIEW OF PATIENT HISTORY

Obtaining relevant clinical history is one of the radiographer’s most valuable contributions.

Example:
Instead of writing: “Leg pain”
Document: “Localized pain at medial malleolus.”

Benefits:

• Improves diagnostic accuracy

• Assists radiologist interpretation

• Reduces repeat imaging

The radiologist rarely speaks directly to the patient — your history matters.

II. VERBAL AND NONVERBAL COMMUNICATION

Communication is BOTH spoken and unspoken.

A. VERBAL COMMUNICATION

Includes:

• Tone of voice

• Volume

• Rate of speech

• Word choice

Guidelines:

• Use calm, well-modulated voice

• Avoid loud, rapid speech

• Use layman’s terms

• Maintain eye contact

• Face the patient when speaking

Anxious patients:

• Need slower explanations

• Require more time to respond

• Move more slowly

B. NONVERBAL COMMUNICATION

Includes:

• Facial expression

• Body posture

• Touch

• Grooming

• Room organization

A neat radiographic room = professionalism
A disorganized room = anxiety trigger

Touch should convey:

• Confidence

• Gentleness

• Reassurance

Never:

• Rush patients

• Throw instructions rapidly

• Dismiss with abrupt language

III. EXPLANATION OF PROCEDURE

A thorough explanation:

✔ Reduces anxiety
✔ Increases cooperation
✔ Improves image quality
✔ Builds patient trust

Patients must understand:

• What the procedure is

• What they will feel

• What is expected of them

• Duration of exam

• Safety considerations

Radiographers must be knowledgeable about:

• Mammography

• CT

• MRI

• Sonography

• Nuclear Medicine

Be prepared to answer:

• Diet restrictions

• Preparation requirements

• Contraindications (e.g., MRI implants)

• Compression techniques in mammography

If unsure → know where to obtain correct information.

IV. EXPLANATION OF AFTERCARE

Aftercare instructions are essential.

Examples:

• Increase fluids after barium studies

• Watch for contrast reactions

• Resume normal diet unless instructed otherwise

Patients may:

• Repeat instructions

• Ask follow-up questions

Patience is part of professional communication.

V. EVALUATING PATIENT CONDITION

Assessment begins before imaging and continues throughout the procedure.

Sources of information:

• Patient chart

• Admitting diagnosis

• Nurse’s notes

• Lab reports

• Preparation tolerance

• Observation

A. PHYSICAL SIGNS

Observe:

⚠ Cyanosis requires immediate medical attention.

B. VITAL SIGNS

Radiographers should be proficient in obtaining:

1. Temperature

2. Pulse

3. Respirations

4. Blood Pressure

1. BODY TEMPERATURE

Normal Adult Oral: 98.6°F (37°C)

Rectal: 0.5–1°F higher
Axillary: 0.5–1°F lower

Infants (0–4 years): 99–99.7°F
Children (5–13 years): 97.8–98.6°F

Fever symptoms:

• Malaise

• Increased pulse

• Increased respiration

• Flushed skin

• Chills

A very high fever may cause brain damage.

2. PULSE

Common Pulse Points:

• Radial (most common)

• Carotid

• Temporal

• Femoral

• Popliteal

Normal Pulse Rates:

• Men: 70–72 bpm

• Women: 78–82 bpm

• Children: 90–100 bpm

• Infants: ~120 bpm

Increases with:

• Fever

• Shock

• Stress

• Standing

• Exercise

3. RESPIRATIONS

Normal Adult: 12–18 breaths/min
Children: up to 30/min

Abnormal Terms:

• Dyspnea – difficult breathing

• Tachypnea – rapid breathing

• Orthopnea – difficulty breathing when lying down

• Oligopnea – shallow breathing

• Stertorous – labored/snoring type

• Stridor – high-pitched sound

Count respirations discreetly after pulse.

4. BLOOD PRESSURE

Normal:

• Systolic: <120 mmHg

• Diastolic: <80 mmHg

Prehypertension:

• 120–139 / 80–89

Hypertension:

• ≥140/90

Hypotension:

• Systolic <90 mmHg

Measured using:

• Sphygmomanometer

• Stethoscope

• Brachial artery

First sound heard = Systolic
Sound disappears = Diastolic

VI. BODY MECHANICS & PATIENT TRANSFER

Patient transport methods:

• Ambulatory

• Wheelchair

• Stretcher

A. BASIC BODY MECHANICS

1. Feet 12 inches apart (broad base)

2. One foot slightly forward

3. Center of gravity over base

4. Keep your back straight

5. Bend your knees when lifting

6. Use leg and abdominal muscles

7. Avoid twisting

8. Hold heavy objects close to the body

9. Push or roll heavy objects whenever possible

B. TRANSFER SAFETY

Before transfer:

• Lock the wheelchair/stretcher

• Move footrests aside

• Assign one person to manage IV lines/tubes

Transfer between stretcher & table:

• Pull, not push

• Use the drawsheet and transfer board

• Use biceps, not back

Never leave:

• Sedated patients

• Confused patients

• Restrained patients

• Shock patients

• Drug/alcohol-impaired patients

VII. PATIENT SAFETY AND COMFORT

Radiographer responsibilities:

✔ Secure patient belongings
✔ Maintain a hazard-free room
✔ Prepare equipment beforehand
✔ Provide a footstool when assisting from table
✔ Move the X-ray tube away before the patient gets down

Clothing rule:

• Remove from the uninjured side first

• Dress the injured side first

SPECIAL CONSIDERATIONS

Elderly Patients

• Fragile skin

• Bruise easily

• Need extra padding

• Move slowly

• Clear simple instructions

IV Infusions

IV bag must be:
18–24 inches above vein level

Signs of infiltration:

• Swelling

• Pain

• Cool skin

Action:

• Stop IV

• Notify nurse/physician

Tracheostomy Patients

• Difficulty speaking

• Anxiety due to choking fear

• Provide writing materials

• Ensure a nurse is available for suction

VIII. INCIDENT REPORTING

If any accident occurs:

• Report immediately

• Complete incident report

• Even if minor

Purpose:

• Legal documentation

• Risk management

• Hazard prevention

FINAL MASTER SUMMARY

Patient Communication and Safety includes:

✔ Accurate identification
✔ Clear requisition review
✔ Effective verbal & nonverbal communication
✔ Thorough procedure explanation
✔ Aftercare instructions
✔ Patient condition assessment
✔ Vital sign proficiency
✔ Proper body mechanics
✔ Safe patient transfer
✔ Continuous patient monitoring
✔ Incident reporting

Infection Control

I. TERMINOLOGY AND BASIC CONCEPTS

A. Medical and Surgical Asepsis

Antisepsis

Antisepsis refers to the practice of inhibiting or slowing down the growth of pathogenic microorganisms. It does not necessarily destroy all organisms but helps prevent their multiplication.

Examples of antiseptic agents include:

• Hydrogen peroxide

• Iodine

• Boric acid

• Chlorine

• Formaldehyde

These chemicals are commonly used on living tissues to prevent infection.

Medical Asepsis

Medical asepsis refers to the destruction or reduction of pathogenic microorganisms through disinfection.

It focuses on preventing the spread of infection by eliminating bacteria from surfaces, equipment, and hands.

Examples of practices:

• Handwashing

• Use of disinfectants

• Cleaning of radiographic equipment

• Proper waste disposal

Medical asepsis must be practiced at all times in healthcare settings.

Surgical Asepsis

Surgical asepsis, also called sterile technique, refers to the complete elimination of all microorganisms including spores.

This is achieved through sterilization and is used in procedures that enter sterile body areas.

Examples where surgical asepsis is required:

• Surgical operations

• Biopsy procedures

• Intravenous contrast administration

• Intrathecal procedures such as myelography

In the surgical suite, strict sterile conditions must be maintained.

B. Handwashing

Handwashing is considered the single most important component of medical asepsis.

In 1843, Oliver Wendell Holmes first advocated handwashing to prevent childbed fever, although his ideas were initially rejected.

Today, hand hygiene is recognized as the most effective method of preventing infection transmission.

Proper Handwashing Technique

Radiographers should wash their hands:

• After every patient examination
• Using soap and warm running water
• For at least 10 seconds

Important handwashing rules:

1. Wash all surfaces of the hands

2. Clean between fingers

3. Keep hands lower than elbows

4. Prevent the uniform from touching the sink

5. Use paper towels to turn faucets on and off

This prevents contamination from the faucet.

Skin Care

Hand lotions should be used to prevent skin chapping, because:

• Broken skin allows microorganisms to enter the body.

• Healthy skin acts as a natural barrier against infection.

Hand Sanitizers

Alcohol-based hand sanitizers may be used as an alternative to soap and water when hands are not visibly dirty.

C. Personal Care in Healthcare Workers

Healthcare professionals must maintain strict personal hygiene to prevent infection spread.

Uniform

A clean uniform must be worn daily because clothing used in patient areas can become contaminated.

Uniforms worn in hospitals should not be worn outside clinical areas.

Jewelry

Jewelry can harbor microorganisms, particularly:

• Rings with stones

• Bracelets

• Necklaces

Microorganisms can hide in small crevices.

Recommended jewelry:

• Plain wedding band

• Wristwatch

Artificial Nails

Artificial nails are discouraged because they can harbor:

• Bacteria

• Fungi

• Other microorganisms

Many hospitals prohibit artificial nails for healthcare workers.

Sterile Technique in Radiology

Sterile technique is required during invasive radiologic procedures, including:

• Biopsy

• Intravenous contrast administration

• Intrathecal injections

• Procedures performed in the surgical suite

Radiographers working in operating rooms must follow surgical asepsis protocols.

Sterile Corridor

The sterile corridor is the space between:

• The draped patient

• The instrument table

This area is restricted to:

• The surgeon

• The instrument nurse

Radiographers must never enter this zone to avoid contamination.

II. CYCLE OF INFECTION

Infection transmission follows a predictable pattern called the Cycle of Infection.

The cycle includes five components:

1. Infectious Agent

2. Reservoir

3. Portal of Exit

4. Mode of Transmission

5. Portal of Entry

6. Susceptible Host

Breaking any step of this cycle prevents infection transmission.

A. Pathogens

Pathogens are microorganisms capable of causing disease.

Examples include:

• Bacteria

• Viruses

• Fungi

• Parasites

Opportunistic Pathogens

These organisms are normally harmless but become dangerous when:

• Introduced into abnormal body areas

• The host is immunocompromised

Bloodborne Pathogens

Bloodborne pathogens are microorganisms present in blood that can cause disease.

Examples include:

• Hepatitis B

• Hepatitis C

• Human Immunodeficiency Virus Infection

These infections may spread through exposure to contaminated blood or body fluids.

B. Modes of Infection Transmission

Infections spread through direct contact or indirect contact.

Direct Contact Transmission

Occurs through physical contact with infected individuals.

Examples:

• Touching

• Handshaking

• Skin-to-skin contact

Diseases spread by direct contact include:

• Skin infections

• Syphilis

• AIDS

Droplet Transmission

Occurs when droplets from:

• coughing

• sneezing

• speaking

enter the mouth, nose, or eyes of another person.

Indirect Contact Transmission

Occurs when microorganisms are transmitted through intermediate sources.

Types include:

Airborne Transmission

Pathogens spread through airborne particles or dust.

These particles can remain suspended in the air and infect others.

Fomites

Fomites are contaminated objects that can transmit infection.

Examples:

• Doorknobs

• Utensils

• Medical equipment

• IV poles

Vectors

Vectors are living carriers that transmit disease.

Examples:

• Mosquito (malaria)

• Tick (Lyme disease)

• Rabid animals

C. Nosocomial Infections

Nosocomial infections are infections acquired during hospital stay that were not present before admission.

According to the Centers for Disease Control and Prevention, approximately 5–15% of hospitalized patients develop nosocomial infections.

Most Common Nosocomial Infection

The most common hospital-acquired infection is the Urinary Tract Infection (UTI).

It is often associated with the use of urinary catheters.

Other Nosocomial Infections

• Sepsis

• Surgical wound infection

• Respiratory tract infection

Sources of Nosocomial Infection

Infections may spread through:

• Contaminated medical equipment

• Improperly sterilized instruments

• Soiled linens

• Contaminated waste

However, the most common mode of transmission is via the hands of healthcare workers.

Therefore, proper handwashing is critical.

III. STANDARD PRECAUTIONS

Standard precautions are infection-control practices that assume all patients may carry infectious organisms.

This concept is recommended by:

• Centers for Disease Control and Prevention

• Hospital Infection Control Practices Advisory Committee

Healthcare workers must treat all blood and body fluids as potentially infectious.

Body Fluids Considered Infectious

These include:

• Blood

• Breast milk

• Semen

• Vaginal secretions

• Amniotic fluid

• Peritoneal fluid

• Synovial fluid

• Cerebrospinal fluid

• Urine

• Feces

• Saliva

• Nasal secretions

Protective Barriers

Standard precautions involve the use of:

• Gloves

• Masks

• Gowns

• Eye protection

These barriers prevent exposure to infectious materials.

Biomedical Waste

Biomedical waste includes materials contaminated with infectious substances.

Examples:

• Used needles

• Laboratory waste

• Body fluid containers

• Suction drainage

These wastes must be disposed of in approved biohazard containers.

IV. TRANSMISSION-BASED PRECAUTIONS

Transmission-based precautions are additional measures used for specific infectious diseases.

Three types exist:

1. Airborne Precautions

2. Droplet Precautions

3. Contact Precautions

A. Airborne Precautions

Used for diseases spread through airborne particles.

Examples include:

• Tuberculosis

• Chickenpox

• Measles

Patients must be placed in a negative-pressure room.

Healthcare workers should wear an N95 respirator mask.

B. Droplet Precautions

Used for diseases transmitted through large respiratory droplets.

Examples:

• Rubella

• Mumps

• Influenza

Requirements include:

• Private room

• Surgical mask for healthcare workers

C. Contact Precautions

Used for diseases transmitted by direct contact.

Examples include:

• Methicillin‑Resistant Staphylococcus aureus Infection

• Clostridioides difficile Infection

• Infected wounds

Healthcare workers must wear:

• Gloves

• Gown

• Mask if required

Protective (Reverse) Isolation

Protective isolation is used to protect immunocompromised patients from infection.

Examples include:

• Burn patients

• Leukemia patients

• Organ transplant recipients

These patients require strict sterile conditions.

Key Board Exam Points

✔ Handwashing is the most important aseptic technique
✔ Medical asepsis = disinfection
✔ Surgical asepsis = sterilization
✔ Most common nosocomial infection = UTI
✔ Standard precautions treat all body fluids as infectious
✔ Three transmission precautions: Airborne, Droplet, Contact
✔ N95 mask is required for airborne diseases

Medical Emergencies and Contrast Media

I. Routine Monitoring of the Patient

Routine monitoring of a patient’s physical condition and vital signs is essential in radiologic procedures. Continuous observation allows the radiographer to detect early changes in the patient’s condition before they develop into a medical emergency.

Vital Signs

Vital signs are the basic indicators of physiologic status and include:

• Body temperature

• Pulse rate

• Respiratory rate

• Blood pressure

These measurements help determine whether a patient is stable or experiencing physiological stress.

1. Body Temperature

Body temperature reflects the balance between heat production and heat loss in the body.

Normal Adult Temperature (Oral)

98.6°F (37°C)

Other Measurement Sites

Key Concepts

• Temperature is usually lowest early in the morning.

• The temperature is highest in the evening.

• Infants and children have wider temperature ranges.

• Elderly patients often have lower body temperatures.

Fever (Elevated Temperature)

Fever often indicates infection or inflammatory processes.

Common symptoms include:

• Malaise (general discomfort)

• Increased pulse rate

• Increased respiratory rate

• Flushed, hot skin

• Chills

2. Pulse Rate

The pulse represents the rhythmic expansion of arteries caused by heart contraction.

Pulse is usually measured by palpating superficial arteries.

Common Pulse Points

The radial pulse is the most commonly used in clinical practice.

The apical pulse is measured using a stethoscope over the apex of the heart.

Normal Pulse Rates

3. Respiratory Rate

Respiration refers to the process of inhalation and exhalation.

Normal respiration should be:

• Regular

• Even

• Effortless

Normal Respiratory Rates

When observing respirations, the radiographer must assess:

• Rate

• Depth (deep or shallow)

• Pattern (regular or irregular)

Respirations are usually counted immediately after measuring pulse, while still holding the patient’s wrist to avoid making the patient consciously alter breathing.

4. Blood Pressure

Blood pressure represents the force exerted by circulating blood against the arterial walls.

It has two components:

Systolic Pressure

Pressure during ventricular contraction.

Diastolic Pressure

Pressure during ventricular relaxation.

Example:

120/80 mmHg

• 120 → systolic

• 80 → diastolic

Normal Adult Blood Pressure

Hypertension

Blood pressure consistently above 140/90 mmHg.

Patient Observation

Radiographers must also observe physical signs beyond vital signs.

Important indicators include:

Cyanosis requires immediate medical attention and oxygen support.

II. Patient Support Equipment

Radiology departments must be equipped with emergency support systems to manage patient complications.

These include:

• Oxygen delivery systems

• Suction devices

• Intravenous equipment

• Drainage tubes

A. Oxygen Therapy

Oxygen is essential for cellular metabolism and tissue survival.

Insufficient oxygen supply results in hypoxia.

Causes of Hypoxia

• Airway obstruction

• Laryngeal edema (anaphylaxis)

• Lung diseases (e.g., emphysema)

• Severe anemia

• Shock

• Pneumonia

• Pulmonary edema

Symptoms of Oxygen Deficiency

• Dyspnea (difficulty breathing)

• Cyanosis

• Diaphoresis

• Neck vein distention

• Anxiety

Immediate Radiographer Actions

1. Call for assistance.

2. Position the patient in a sitting or semi-Fowler position.

3. Provide oxygen if available.

4. Monitor vital signs continuously.

Oxygen Sources

Oxygen is typically supplied through:

Wall Outlets

Pressure range: 60–80 psi

Oxygen Tanks

Contain:

• Flow regulation valve

• Pressure gauge (indicates remaining oxygen)

Humidified oxygen is recommended to prevent drying of the respiratory mucosa.

Oxygen Delivery Devices

1. Nasal Cannula

• Most common device

• Low-flow oxygen

• Comfortable and convenient

2. Simple Face Mask

• Low-flow

• Used for short-term therapy

• Must be removed during meals

3. Partial Rebreather Mask

Provides higher oxygen concentration.

4. Nonrebreather Mask

Provides very high oxygen concentration.

5. Mechanical Ventilator

A high-flow oxygen device is used in critical care patients with artificial airways.

⚠ Safety Note

Oxygen does not burn, but it supports combustion.

Therefore:

• Avoid flames

• Avoid sparks

• No smoking near oxygen sources

B. Suction Equipment

Suction devices remove secretions, blood, or fluids from the airway.

They are used when a patient:

• Is unconscious

• Cannot clear the airway secretions

Suction systems may be:

• Wall-mounted

• Portable units

A disposable suction catheter is attached to the tubing.

Radiographers usually assist rather than perform suctioning, but they must know where the equipment is located.

C. Intravenous (IV) Equipment and Venipuncture

Intravenous access is used for:

• Medication administration

• Fluid replacement

• Contrast media injection

IV medications act rapidly, making them essential in emergencies.

Common IV Fluids

• Normal saline

• D5W (5% dextrose in water)

IV Equipment

Includes:

• Needles

• Syringes

• IV catheters

• Heparin locks

• IV poles

• Infusion sets

Needle Gauge

Gauge refers to the diameter of the needle.

Important principle:

Example:

• 18 gauge → larger diameter

• 23 gauge → smaller diameter

Venipuncture Sites

Most common site for contrast injection:

Antecubital Vein

Other possible sites:

• Basilic vein

• Cephalic vein

• Dorsal hand veins

The needle is inserted at approximately a 15° angle.

Correct placement is confirmed when blood flows back into the tubing.

Strict aseptic technique must always be used.

IV Flow Considerations

IV bags should be placed 18–24 inches above the vein.

If the bag is:

• Too low → blood may flow backward

• Too high → infusion may flow too rapidly

Extravasation

Extravasation occurs when contrast medium leaks into surrounding tissues instead of the vein.

Causes:

• Small veins

• Deep veins

• Incorrect needle placement

Management:

1. Stop injection.

2. Remove the needle.

3. Apply pressure.

4. Apply a warm compress.

D. Tubes

Radiographers may encounter several types of tubes in hospitalized patients.

1. Chest Tubes

Chest tubes are used to remove:

• Air (pneumothorax)

• Blood (hemothorax)

They are connected to a three-chamber drainage system:

1. Collection chamber

2. Water seal chamber

3. Suction control chamber

Important rule:

The drainage system must remain below the patient’s chest level.

2. Gastrointestinal Tubes

Types:

• Nasogastric (NG) tube

• Nasointestinal (NI) tube

• Nasoenteric (NE) tube

Uses:

• Feeding

• Gastric decompression

• Removal of air and fluids

Important rule:

Double-lumen tubes must never be clamped because the walls may stick together.

3. Urinary Catheters

Used for:

• Urine drainage

• Post-surgical healing

• Incontinence management

Common materials:

• Plastic

• Rubber

• PVC

• Silicone

Important rule:

The urine collection bag must remain below bladder level to prevent infection.

Urinary tract infections are the most common hospital-acquired infections.

III. Allergic Reactions

An allergy is an abnormal immune response to a substance (allergen).

The reaction occurs after:

1. Initial exposure (sensitization)

2. Subsequent exposure

Common Allergic Conditions

Examples include:

• Hay fever

• Urticaria (hives)

• Allergic rhinitis

• Eczema

• Bronchial asthma

Routes of Allergen Exposure

Allergens may enter the body via:

• Contact

• Ingestion (food)

• Inhalation (dust or pollen)

• Injection (medications)

Latex Allergy

Latex comes from rubber tree sap and contains proteins that may trigger allergic reactions.

Healthcare workers are at high risk due to frequent glove use.

Types of Latex Reactions

1. Irritant Contact Dermatitis

Most common reaction.

Symptoms:

• Dry skin

• Itching

• Skin irritation

This is not a true allergy.

2. Allergic Contact Dermatitis

Delayed hypersensitivity reaction.

Symptoms appear 24–48 hours later.

Signs include:

• Skin rash

• Blisters

• Oozing lesions

3. Latex Allergy (Immediate Hypersensitivity)

Most serious type.

Symptoms include:

• Hives

• Itching

• Runny nose

• Sneezing

• Wheezing

• Difficulty breathing

Severe cases may lead to anaphylactic shock.

IV. Contrast Media

Contrast media are substances used to increase radiographic contrast in body structures that normally have poor visibility.

Purpose of Contrast Media

Contrast agents allow radiographers to visualize:

• Blood vessels

• Organs

• Body cavities

They increase subject contrast, making structures easier to distinguish.

Types of Contrast Media

Positive Contrast Media (Radiopaque)

High atomic number → absorb more X-rays → appear white.

Examples:

• Barium sulfate

• Iodinated contrast agents

Negative Contrast Media (Radiolucent)

Low density → allow X-rays to pass → appear dark.

Examples:

• Air

• Carbon dioxide

Double-Contrast Studies

Use both positive and negative contrast agents.

Examples:

• Barium enema

• Upper GI series

• Arthrography

Positive agent coats the mucosa, while air distends the organ for better visualization.

Contraindications

Barium Sulfate Contraindication

Barium must not be used if GI perforation is suspected.

Reason:

Barium leaking into the peritoneal cavity can cause peritonitis.

Instead, water-soluble iodinated contrast is used.

Aftercare for Barium Studies

Patients must receive instructions to prevent barium impaction.

They should:

• Drink plenty of fluids

• Increase fiber intake

• Take mild laxatives (e.g., milk of magnesia)

• Expect light-colored stools

If no bowel movement occurs within 24 hours, they should contact a physician.

✅ Key Board Exam Reminder

Always remember the core responsibilities of the radiographer:

• Monitor vital signs

• Observe patient's condition

• Recognize early medical emergencies

• Maintain sterile technique

• Prevent complications from contrast media

V. Other Medical Emergencies (Radiology Department)

Radiologic technologists must be able to recognize medical emergencies and respond immediately until medical assistance arrives. These situations may arise due to patient illness, trauma, anxiety, contrast reactions, or underlying disease.

A. Vomiting

Vomiting is the forceful expulsion of gastric contents through the mouth. It may occur due to anxiety, contrast media reaction, gastrointestinal irritation, or systemic illness.

Risks

The major danger is aspiration, where vomitus enters the lungs, which can cause airway obstruction or aspiration pneumonia.

Radiographer Management

• Turn the patient to the side to prevent aspiration

• Provide an emesis basin

• Clear the airway if necessary

• Monitor the patient’s vital signs

• Notify the physician if vomiting persists

B. Fractures

A fracture is a break in the continuity of a bone, usually caused by trauma or underlying pathology.

Signs and Symptoms

• Severe pain

• Swelling

• Deformity

• Loss of function

• Abnormal mobility

Radiographer Management

• Immobilize the affected area

• Avoid unnecessary movement

• Support the injured limb

• Ensure patient comfort during imaging

C. Spinal Injuries

Spinal injuries involve trauma to the vertebral column and may damage the spinal cord, potentially causing paralysis.

Signs and Symptoms

• Severe back or neck pain

• Loss of sensation

• Weakness or paralysis

• Loss of bladder or bowel control

Radiographer Management

• Do not move the patient unnecessarily

• Maintain head and neck stabilization

• Use spinal immobilization devices

• Follow strict log-rolling techniques if movement is required

D. Epistaxis (Nosebleed)

Epistaxis is bleeding from the nasal cavity, often caused by trauma, hypertension, infection, or nasal irritation.

Management

• Seat the patient upright

• Instruct them to lean forward

• Apply direct pressure to the nasal bridge

• Apply a cold compress

• If bleeding persists, notify the physician

Leaning forward prevents blood from flowing into the throat, which may cause vomiting or aspiration.

E. Postural (Orthostatic) Hypotension

Postural hypotension is a sudden drop in blood pressure when a patient moves from lying to standing, leading to dizziness or fainting.

Causes

• Dehydration

• Blood loss

• Prolonged bed rest

• Certain medications

Symptoms

• Dizziness

• Lightheadedness

• Blurred vision

• Weakness

Management

• Assist the patient back to a lying or sitting position

• Elevate the legs

• Monitor vital signs

F. Vertigo

Vertigo is the sensation of the surroundings spinning, often associated with inner-ear disorders or neurological conditions.

Symptoms

• Dizziness

• Loss of balance

• Nausea

• Vomiting

Management

• Assist the patient to lie down

• Prevent falls

• Monitor patient condition

G. Syncope (Fainting)

Syncope is a temporary loss of consciousness caused by decreased blood flow to the brain.

Causes

• Anxiety

• Pain

• Dehydration

• Hypoglycemia

• Sudden posture change

Signs

• Pale skin

• Cold sweating

• Dizziness

• Weak pulse

Radiographer Management

• Place the patient in the supine position

• Elevate the legs

• Maintain airway

• Monitor vital signs

H. Convulsion

Convulsions are involuntary, violent muscle contractions caused by abnormal electrical activity in the brain.

Causes

• Epilepsy

• Brain injury

• High fever

• Hypoxia

Management

• Protect the patient from injury

• Remove nearby objects

• Do NOT restrain movements

• Do NOT place objects in the mouth

• After a seizure, check the airway and breathing

I. Unconsciousness

Unconsciousness is a state in which the patient is unresponsive to external stimuli.

Possible Causes

• Head injury

• Stroke

• Hypoxia

• Drug overdose

• Severe illness

Immediate Response

Follow the ABC assessment:

A – Airway
Ensure the airway is open.

B – Breathing
Check for respirations.

C – Circulation
Check pulse and blood pressure.

Activate emergency medical assistance immediately.

J. Acute Abdomen

Acute abdomen refers to sudden, severe abdominal pain requiring urgent medical evaluation.

Possible Causes

• Appendicitis

• Perforated ulcer

• Intestinal obstruction

• Internal bleeding

Radiographer Role

• Stop the examination

• Inform the physician

• Monitor the patient closely

K. Shock

Shock is a life-threatening condition where tissues do not receive adequate oxygen and blood flow.

Types of Shock

• Hypovolemic – blood loss

• Cardiogenic – heart failure

• Septic – infection

• Anaphylactic – allergic reaction

• Neurogenic – nervous system damage

Signs

• Low blood pressure

• Rapid pulse

• Pale, clammy skin

• Altered consciousness

Management

• Call for emergency help

• Keep the patient warm

• Elevate legs

• Administer oxygen if available

L. Seizure

A seizure is a sudden, abnormal electrical activity in the brain, which may produce convulsions or altered consciousness.

Management

• Protect the patient from injury

• Maintain airway

• Monitor breathing after the seizure ends

M. Respiratory Failure

Respiratory failure occurs when the lungs cannot supply enough oxygen or remove carbon dioxide.

Symptoms

• Severe difficulty breathing

• Cyanosis

• Confusion

• Rapid breathing

Management

• Provide oxygen

• Maintain airway

• Call the emergency team immediately

N. Cardiopulmonary Arrest

Cardiopulmonary arrest is the complete cessation of heart and respiratory activity.

Signs

• No pulse

• No breathing

• Unconsciousness

Management

• Activate Code Blue

• Begin CPR immediately

• Use a defibrillator (AED) if available

This condition requires immediate life-saving intervention.

O. Stroke

Stroke is a sudden interruption of blood flow to the brain, leading to neurological deficits.

Types

1. Ischemic stroke – caused by a blood clot

2. Hemorrhagic stroke – caused by bleeding in the brain

Warning Signs (FAST)

F – Face drooping
A – Arm weakness
S – Speech difficulty
T – Time to seek emergency help

Radiographer Management

• Stop the procedure

• Call the emergency team

• Monitor airway, breathing, and circulation

Board Exam Tip (VERY IMPORTANT)

Radiologic technologists must always remember:

1. Recognize the emergency
2. Stop the procedure
3. Call for medical assistance
4. Monitor vital signs
5. Protect the airway and patient safety