ACLS Medical Training 4

Question 1

A patient develops torsades de pointes. Which treatment is specifically indicated for this arrhythmia?

Accepted Answer

Magnesium sulfate 1–2 g IV

Answer

Magnesium sulfate is the treatment of choice for torsades de pointes, which is often associated with hypomagnesemia or QT prolongation.

Question 2

During an ACLS scenario, the team leader calls for a 'pulse check.' How long should this check last?

Accepted Answer

No more than 10 seconds

Answer

Pulse checks should be no longer than 10 seconds to minimize interruptions to chest compressions.

Question 3

Which IV/IO access site is preferred for medication administration during cardiac arrest when peripheral IV is not available?

Accepted Answer

Intraosseous (IO) access

Answer

IO access is preferred when IV access cannot be rapidly established, as it provides reliable vascular access during CPR.

Question 4

What is the energy setting recommended for the first biphasic defibrillation shock in an adult with VF?

Accepted Answer

120–200 J (per manufacturer)

Answer

For biphasic defibrillators, the recommended energy is 120–200 J based on manufacturer specifications for the first shock.

Question 5

A patient has narrow-complex tachycardia at 170 bpm and is hemodynamically stable. Vagal maneuvers fail. What is the next ACLS step?

Accepted Answer

Adenosine 6 mg rapid IV push

Answer

Adenosine 6 mg rapid IV push is the first pharmacologic intervention for stable narrow-complex SVT after failed vagal maneuvers.

ACLS Practice Test