Final answer:
During cardiac arrest resuscitation, the normal saline flush administered after each peripherally administered drug dose is typically 20 to 30 mL.
Step-by-step explanation:
When a member of the resuscitation team is preparing to administer medications intravenously to a patient in cardiac arrest, the normal practice is to follow each peripherally administered drug dose with a normal saline flush. The amount of normal saline flush typically administered in this scenario ranges from 20 to 30 mL. This practice helps to ensure that the drug is promptly delivered into the central circulation, which is particularly critical during the emergency management of cardiac arrest.