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xamination Practice Questions And Correct fj fj fj fj fj
Answers (Verified Answers) Plus Rationales
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2026 Q&A | Instant Download Pdf
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1. A 56-year-
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old male presents with acute chest pain radiating to his left arm. ECG s
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hows ST- fj
elevation in leads II, III, and aVF. Which coronary artery is most likely in
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volved?
A. Left anterior descending
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B. Right coronary artery fj fj
C. Circumflex artery fj
D. Left main coronary artery
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Rationale: ST- fj
elevation in II, III, and aVF indicates an inferior myocardial infarction,
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most commonly due to right coronary artery occlusion.
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,2. Which of the following is the most appropriate initial treatment for a p
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atient in ventricular tachycardia with a pulse but unstable?
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A. Amiodarone 150 mg IV fj fj fj
B. Synchronized cardioversion fj
C. Defibrillation
D. Lidocaine 1 mg/kg IV fj fj fj
Rationale: Unstable VT with a pulse requires immediate synchronized
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cardioversion to restore perfusing rhythm. fj fj fj fj
3. During mechanical ventilation, which parameter primarily determines
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oxygenation?
A. Respiratory rate fj
B. Tidal volume fj
C. Fraction of inspired oxygen (FiO2) fj fj fj fj
D. PEEP
Rationale: Oxygenation is mainly influenced by FiO2 and PEEP, while v
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entilation is affected by tidal volume and rate.
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4. A patient in septic shock demonstrates hypotension unresponsive to f
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luid resuscitation. The next step should be:
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A. Administer high-dose corticosteroids fj fj
B. Begin broad-spectrum antibiotics
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C. Initiate vasopressor therapy fj fj
D. Begin diuretics fj
, Rationale: Persistent hypotension after fluids in septic shock requires v
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asopressors, typically norepinephrine, to maintain perfusion.
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5. Which drug is indicated for bradycardia with hypotension in the critical c
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are setting?
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A. Atropine
B. Amiodarone
C. Epinephrine
D. Dopamine
Rationale: Atropine is first-
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line therapy for symptomatic bradycardia to increase heart rate.
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6. A patient with acute respiratory distress on BiPAP develops
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hypotension and confusion. What is the most likely cause?
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A. Pulmonary embolism fj
B. Tension pneumothorax fj
C. Myocardial infarction fj
D. Asthma exacerbation fj
Rationale: Hypotension and confusion in a patient on positive pressur
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e ventilation may indicate tension pneumothorax due to increased intr
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athoracic pressure. fj
7. Which lab value is most critical to monitor in a patient receiving c
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ontinuous IV insulin for DKA?
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A. Potassium
B. Sodium
, C. Glucose
D. Potassium and glucose simultaneously fj fj fj
Rationale: Insulin lowers glucose and drives potassium into cells, riskin
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g hypokalemia; both must be closely monitored.
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8. Which of the following medications is a vasopressor primarily used to i
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mprove coronary perfusion in cardiac arrest?
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A. Dopamine
B. Epinephrine infusion fj
C. Epinephrine bolus fj
D. Norepinephrine
Rationale: Epinephrine bolus during cardiac arrest increases coronary
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and cerebral perfusion pressures.
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9. In a patient with severe asthma exacerbation, which intervention is c
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onsidered first-line if oxygenation is inadequate?
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A. IV corticosteroids fj
B. Nebulized albuterol and ipratropium fj fj fj
C. Magnesium sulfate infusion fj fj
D. Intubation
Rationale: First- fj
line therapy for acute bronchospasm is nebulized beta-
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agonists with anticholinergics; other interventions are adjuncts or for
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refractory cases. fj
10. Which of the following best describes the use of norepinephrine i
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n shock?
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