DC Clinical Procedures & Protocols 2

Question 1

When performing synchronized cardioversion for unstable atrial fibrillation, the synchronization marker should align with which ECG component?

Accepted Answer

QRS complex

Answer

The defibrillator's sync mode delivers the shock on the R wave of the QRS complex to avoid the vulnerable T-wave period.

Question 2

A patient in pulseless ventricular tachycardia should receive which immediate intervention?

Accepted Answer

Unsynchronized defibrillation

Answer

Pulseless VT is treated identically to VF with immediate unsynchronized defibrillation because there is no perfusing rhythm to synchronize to.

Question 3

During a code, the team leader calls for a rhythm check. The monitor shows a flat line. What is the most appropriate next action?

Accepted Answer

Check lead connections and gain settings

Answer

A flatline may represent artifact or a loose lead rather than true asystole, so verifying lead placement and monitor settings is the first step.

Question 4

What is the maximum recommended single dose of IV amiodarone for acute conversion of stable monomorphic VT?

Accepted Answer

150 mg over 10 min

Answer

The standard ACLS dose for stable monomorphic VT is amiodarone 150 mg IV infused over 10 minutes.

Question 5

A patient receiving IV procainamide develops hypotension. The most appropriate immediate action is to:

Accepted Answer

Stop or slow the infusion and give a fluid bolus

Answer

Procainamide's vasodilatory properties can cause hypotension; slowing or stopping the infusion and supporting blood pressure with fluids is the priority.

(DC) Dysrhythmia Certification Practice Test

(DC) Dysrhythmia Certification Practice Test

DC Clinical Procedures & Protocols 2