AMLS Cardiac Emergencies

Question 1

Which ECG finding is most consistent with an acute ST-elevation myocardial infarction (STEMI) in the inferior leads?

Accepted Answer

ST elevation in leads II, III, and aVF

Answer

ST depression in leads V1-V4

Answer

Prolonged QT interval

Answer

Right bundle branch block

Question 2

A patient presents with sudden-onset tearing chest pain radiating to the back. Which condition should be suspected first?

Accepted Answer

Acute aortic dissection

Answer

Tension pneumothorax

Answer

Pericarditis

Answer

Pulmonary contusion

Question 3

What is the primary goal of early reperfusion therapy in STEMI management?

Accepted Answer

Restore coronary blood flow to salvage myocardium

Answer

Reduce systemic blood pressure

Answer

Prevent ventricular hypertrophy

Answer

Decrease heart rate

Question 4

Which rhythm is most commonly the initial rhythm seen in sudden cardiac arrest due to cardiac etiology?

Accepted Answer

Ventricular fibrillation

Answer

Asystole

Answer

Pulseless electrical activity

Answer

Atrial fibrillation

Question 5

A patient with chest pain has a 12-lead ECG showing new left bundle branch block. How should this be managed?

Accepted Answer

Treat as STEMI equivalent and activate cath lab

Answer

Administer aspirin only and monitor

Answer

Discharge with cardiology follow-up

Answer

Perform immediate cardioversion

Question 6

Beck's triad (hypotension, muffled heart sounds, and JVD) is associated with which cardiac emergency?

Accepted Answer

Cardiac tamponade

Answer

Acute MI

Answer

Right-sided heart failure

Answer

Hypertensive emergency