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1. What is the normal range for an adult’s respiratory rate?
A. 8–12 breaths per minute
B. 12–20 breaths per minute
C. 20–28 breaths per minute
D. 30–40 breaths per minute
Rationale: The normal adult respiratory rate is between 12–20 breaths
per minute; values outside this may indicate respiratory distress.
2. Which of the following is the most reliable indicator of adequate
ventilation?
A. Chest rise and fall
B. Pulse oximetry reading
C. End-tidal CO₂ measurement
D. Patient color
Rationale: Capnography (ETCO₂) provides direct measurement of
ventilation effectiveness and is more reliable than visual signs.
3. The first step in managing a patient with suspected spinal injury is to:
A. Manually stabilize the cervical spine
B. Perform a rapid trauma assessment
C. Apply a cervical collar
D. Assess airway patency
, Rationale: Manual stabilization must be initiated immediately to
prevent spinal cord movement before other interventions.
4. What is the primary purpose of defibrillation?
A. To stop asystole
B. To depolarize all myocardial cells simultaneously
C. To increase cardiac output
D. To stimulate pacemaker cells
Rationale: Defibrillation depolarizes the heart muscle to allow the
natural pacemaker to re-establish normal rhythm.
5. What is the drug of choice for anaphylaxis?
A. Diphenhydramine
B. Albuterol
C. Epinephrine
D. Methylprednisolone
Rationale: Epinephrine rapidly reverses airway swelling,
bronchoconstriction, and hypotension in anaphylaxis.
6. Which of the following ECG rhythms requires immediate defibrillation?
A. Ventricular fibrillation
B. Atrial flutter
C. Sinus tachycardia
D. First-degree AV block
Rationale: Ventricular fibrillation is a life-threatening arrhythmia that
requires prompt defibrillation.
7. The most appropriate fluid for initial management of hypovolemic shock
is:
A. Dextrose 5% in water
B. Normal saline (0.9% NaCl)
C. Lactated Ringer’s with dextrose
D. Plasma expanders
Rationale: Isotonic crystalloids like normal saline are the fluid of choice
for volume resuscitation.
8. Which of the following best describes the action of nitroglycerin?
A. Vasodilator that decreases myocardial oxygen demand
, B. Inotrope that increases cardiac output
C. Beta-blocker that slows heart rate
D. Antiplatelet that prevents clot formation
Rationale: Nitroglycerin causes vasodilation, reducing preload and
myocardial oxygen consumption.
9. What is the recommended compression-to-ventilation ratio for adult
CPR?
A. 15:2
B. 30:2
C. 20:2
D. 10:1
Rationale: Current CPR guidelines recommend 30 compressions to 2
breaths for adult patients.
10.The Glasgow Coma Scale assesses:
A. Reflexes, movement, and blood pressure
B. Memory, cognition, and sensation
C. Eye, verbal, and motor response
D. Pupillary reaction, heart rate, and respiration
Rationale: The GCS evaluates eye opening, verbal, and motor responses
to determine neurologic function.
11.The main goal in managing a patient with diabetic ketoacidosis (DKA) is
to:
A. Administer oral glucose
B. Correct dehydration and acidosis
C. Increase insulin secretion naturally
D. Elevate blood pressure
Rationale: DKA treatment focuses on fluid resuscitation and correcting
metabolic imbalances.
12.The most common cause of cardiogenic shock is:
A. Myocardial infarction
B. Pulmonary embolism
C. Pericardial tamponade