Prescription Writing Flashcards

What are the essential components of a valid prescription?

Answer: Patient details, date, drug name, dose, route, frequency, quantity, and prescriber's signature

A complete prescription must identify the patient, specify the medication with precise dosing instructions, include the quantity and date, and bear the prescriber's signature.

Why should generic drug names be used in prescriptions?

Answer: Generic names are unambiguous, internationally recognized, and help avoid confusion between brand names

Generic (International Nonproprietary Names) names are standardized worldwide, reducing the risk of confusion between similar-sounding brand names and ensuring clarity.

What does 'PRN' mean on a prescription?

Answer: As needed — the medication is taken only when required rather than on a fixed schedule

PRN (pro re nata) indicates the medication should be taken when needed, with maximum dose limits specified, rather than at regular intervals.

What information must be included for controlled substances?

Answer: The prescriber's DEA number, the patient's full address, and specific quantity in words and figures

Controlled substance prescriptions require additional safeguards including the prescriber's DEA registration, patient's address, and quantity written in both words and numbers.

What is the difference between a dosage and a dose?

Answer: A dose is the amount given at one time; dosage is the complete regimen including dose, frequency, and duration

Dose is the quantity of drug administered at one time, while dosage encompasses the complete regimen: how much, how often, for how long.

What does 'stat' mean in a prescription or medication order?

Answer: Immediately — the medication should be given right away

Stat (statim) means immediately, indicating the medication should be administered without delay, typically used in urgent or emergency situations.