The Nurse Is Calculating the Dosage of a Drug to Administer

The nurse is calculating the dosage of a drug to administer. Once the dosage has been calculated, what is the most important action on the part of the nurse?

A) Contact the pharmacist for dosage confirmation.
B) Check the identity of the patient three times.
C) Recalculate the drug dose and check with another nurse.
D) Check the American Hospital Formulary for drug doses.