A patient is in refractory ventricular fibrillation. High-quality CPR is in progress. One dose of epinephrine was given after the second shock. An antiarrhythmic drug was given immediately after the third shock. You are the team leader. Which medication do you order next?
A. second dose of antiarrhythmic drug
B. Epi 3 mg
C. Sodium bicarbonate 50mEq
D. Epi 1 mg