us-abem MCQ (SBA): Cardiac arrest (VF)

Instant feedback + full explanation. One question, done properly.

EasyEmergency MedicineCardiac arrest (VF)us-abemus-usmle-step-2

A patient in ventricular fibrillation arrest receives a biphasic defibrillator shock. What initial energy is appropriate per ACLS?

Educational content. Not a substitute for clinical judgement or local policy.