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Rationales 2026 Q&A | Instant
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Question 1
What is the primary function of red blood cells?
A. Fight infection
B. Carry oxygen
C. Produce hormones
D. Control bleeding
Correct Answer: B
Rationale: Red blood cells transport oxygen from the lungs to body tissues.
Question 2
What is the normal adult respiratory rate?
A. 4–8 breaths/min
B. 8–12 breaths/min
C. 12–20 breaths/min
D. 24–30 breaths/min
Correct Answer: C
Rationale: Normal adult breathing is 12–20 breaths per minute.
Question 3
,What organ controls breathing automatically?
A. Liver
B. Brainstem
C. Kidney
D. Heart
Correct Answer: B
Rationale: The brainstem regulates involuntary breathing.
Question 4
What is the main purpose of EMS?
A. Surgery
B. Emergency medical care
C. Pharmacy distribution
D. Laboratory testing
Correct Answer: B
Rationale: EMS provides pre-hospital emergency medical care.
Question 5
What does CPR stand for?
A. Cardiac Pressure Rescue
B. Cardiopulmonary Resuscitation
C. Circulatory Pump Recovery
D. Cardiac Pulmonary Response
Correct Answer: B
Rationale: CPR means cardiopulmonary resuscitation.
Question 6
,What is the first step in the EMT primary assessment?
A. Blood pressure check
B. Scene safety
C. IV insertion
D. Oxygen administration
Correct Answer: B
Rationale: Scene safety must always be confirmed first.
Question 7
What is the universal sign of airway obstruction?
A. Sneezing
B. Clutching the throat
C. Headache
D. Rash
Correct Answer: B
Rationale: Clutching the throat indicates choking.
Question 8
What is hypoxia?
A. High oxygen level
B. Low oxygen level
C. High blood sugar
D. Low blood pressure
Correct Answer: B
Rationale: Hypoxia means insufficient oxygen in tissues.
Question 9
, What is the normal pulse rate for adults?
A. 20–40 bpm
B. 40–60 bpm
C. 60–100 bpm
D. 120–160 bpm
Correct Answer: C
Rationale: Normal adult pulse is 60–100 beats per minute.
Question 10
What does AED stand for?
A. Automatic Emergency Device
B. Automated External Defibrillator
C. Artificial Electrical Device
D. Advanced Emergency Defibrillator
Correct Answer: B
Rationale: AED delivers shocks to restore heart rhythm.
Question 11
What is the purpose of the pulse?
A. Measure temperature
B. Measure heart rate
C. Measure oxygen
D. Measure blood sugar
Correct Answer: B
Rationale: Pulse reflects heart rate.
Question 12