First Aid, CPR, and Medical Emergency Response in Imaging

Why Emergency Response Belongs in the Imaging Suite

Radiologic technologists work in settings where patients are often unwell, anxious, or receiving medications that carry risk. Even in a routine outpatient clinic, a patient can faint, seize, or suffer a serious allergic reaction before you have time to call for help. You may be the first — and for several critical minutes, the only — responder. Knowing what to do, doing it correctly, and documenting it accurately are core professional obligations that cross every practice setting and support every credential you will earn.

CPR: The Foundation of Emergency Response

Cardiopulmonary resuscitation (CPR) keeps oxygenated blood moving to the brain and heart when a patient's own circulation has stopped. Current guidelines from the American Heart Association (AHA) and American Red Cross emphasize high-quality chest compressions as the most important single action a rescuer can take.

Adult CPR key points:

• Confirm unresponsiveness and absence of normal breathing.
• Activate the emergency response system (call or send someone to call 911 and retrieve the AED).
• Begin chest compressions on the lower half of the sternum, pushing down at least 2 inches but not more than 2.4 inches, at a rate of 100–120 compressions per minute.
• Allow full chest recoil between compressions; do not lean on the chest.
• For healthcare providers trained in rescue breaths, deliver 30 compressions followed by 2 breaths (30:2 ratio) and keep interruptions to compressions under 10 seconds.

Child (age 1 to puberty) and infant (under 1 year) differences:

• Compression depth is roughly one-third the depth of the chest.
• For infants, use two fingers or the two-thumb encircling technique.
• Ratio remains 30:2 for a single rescuer; two trained healthcare providers use 15:2 for children and infants.
• Check brachial pulse in infants rather than carotid.

AED Operation

An automated external defibrillator (AED) analyzes the heart's rhythm and delivers a shock if a shockable rhythm is detected. Steps apply to adults and children; pediatric pads or a dose-attenuating system should be used for children under 8 years when available.

1. Power on the AED.

2. Attach pads as shown in the diagram on the pads — one below the right collarbone, one on the left lateral chest.

3. Ensure no one is touching the patient while the AED analyzes.

4. If a shock is advised, ensure everyone is clear, then press the shock button.

5. Immediately resume CPR after the shock; do not wait to recheck pulse.

Three Emergencies You Will Encounter in Imaging

Contrast Reaction

Intravenous iodinated contrast media can trigger reactions ranging from mild (nausea, hives) to severe anaphylaxis (throat swelling, hypotension, cardiovascular collapse). If a patient reports throat tightening, develops hives, becomes pale and diaphoretic, or loses consciousness after contrast injection:

• Stop the injection immediately if still in progress.
• Keep the patient in the room; do not leave them alone.
• Activate your facility's emergency response (code or 911).
• Maintain airway; be prepared to assist ventilation.
• Know where your crash cart and epinephrine are located — administration is performed by authorized clinical staff, not students.

Syncope (Fainting)

Syncope is a brief loss of consciousness caused by a sudden drop in blood flow to the brain. It is common in imaging, triggered by anxiety, pain, breath-holding, or prolonged standing.

• If you see warning signs (pallor, diaphoresis, dizziness), lower the patient or help them sit before they fall.
• If already unresponsive: confirm breathing, place in recovery position (on their side) if breathing is present and no spinal injury is suspected, and call for assistance.
• Monitor airway and level of consciousness continuously.
• Do not offer oral fluids until the patient is fully alert and authorized personnel have assessed them.

Seizure

A patient may seize on the X-ray table or in a wheelchair. Your role is protective, not restraining.

• Note the time the seizure begins.
• Clear hard objects away from the patient; pad the area if possible.
• Do not restrain the patient's movements.
• Do not place anything in the patient's mouth.
• Turn the patient onto their side after convulsive movements stop (recovery position) to protect the airway.
• Call for emergency assistance immediately.
• Stay with the patient and keep timing the event; report duration and description to clinical staff.

Scope of Practice Reminder

As a student and as a limited-scope technologist, your role in emergencies is to recognize, protect, activate the system, provide basic life support, and document — not to diagnose or administer medications. Always defer clinical decision-making to the supervising physician, nurse, or advanced provider once they arrive.

Incident Documentation

Every emergency event in a healthcare facility requires written documentation. A good incident report records: patient identifier, date and time, objective observations (what you saw and heard), actions taken and by whom, time sequence, and who was notified. Use factual language; avoid opinions. Accurate documentation protects the patient, the facility, and you.