Question

A 58‑year‑old collapses with pulseless polymorphic VT. CPR is in progress and a shockable rhythm is confirmed. What is the next action?

Accepted Answer

Defibrillate with biphasic 200 J, then resume CPR

Answer

Administer magnesium 2 g IV before any shock

Answer

Give epinephrine 1 mg IV before any shock

Answer

Perform synchronized cardioversion

Answer

Wait for an antiarrhythmic infusion to arrive

Practice question

A 58‑year‑old collapses with pulseless polymorphic VT. CPR is in progress and a shockable rhythm is confirmed. What is the next action?