What best defines a prescription?

• A. An order written by a practitioner for pharmacy supplies, including the patient's name, drug, quantity, and directions
• B. A doctor's note for clinic use only
• C. A formal diagnosis report
• D. An order for laboratory tests

Answer: (A)

A prescription is a formal order from a qualified practitioner directing a pharmacist to dispense a specific medication or related item to a patient. The essential elements are the patient's name, the drug or item, the quantity to supply, and clear directions for use. This combination distinguishes a prescription from other medical documents used in care settings, such as a doctor’s note intended for clinic use, a formal diagnosis report, or an order for laboratory tests, which serve different purposes. In everyday practice, a prescription authorizes dispensing and provides the patient with exact instructions on how to take the medication, ensuring safe and proper use.