The Nurse Performs the Proper Technique When Withdrawing Medication from the Vial

The nurse performs the proper technique when withdrawing medication from the vial by:

A) wiping the rubber stopper with a povidone iodine swab.
B) inserting the needle into the vial at a 90-degree angle.
C) injecting into the vial an amount of air that is equal to the dose.
D) keeping the needle above the level of solution while withdrawing into the syringe.