After administering 40 units of vasopressin to an elderly woman in bradycardic pulseless electrical activity, you should:

A) pause CPR for no longer than 10 seconds and assess for a pulse.
B) continue CPR and flush the IV line with 20 mL of normal saline.
C) administer 1 mg of epinephrine 1:10,000 while CPR is ongoing.
D) give naloxone to rule out opiate overdose as the cause of her arrest.

Answer: B) continue CPR and flush the IV line with 20 mL of normal saline.