Which abbreviation is used to indicate a medication should be taken 'as needed'?
QID
PRN
BID
AC
The Correct Answer is B
A. QID: QID stands for “four times a day” and indicates a scheduled dosing frequency, not as-needed administration.
B. PRN: PRN is the standard abbreviation for “pro re nata,” meaning the medication should be taken only as needed for specific symptoms or situations. It allows flexibility based on patient condition or response.
C. BID: BID means “twice a day” and represents a regular, scheduled dosing interval rather than an as-needed basis.
D. AC: AC stands for “before meals” and refers to timing of medication administration relative to food intake, not frequency or need-based use.
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Correct Answer is C
Explanation
A. Twice daily: Twice-daily dosing is abbreviated as BID and indicates medication administration every 12 hours. QID specifically refers to a higher frequency and should not be confused with BID. Accurate interpretation is essential to prevent underdosing.
B. Three times daily: Three-times-daily dosing is abbreviated as TID and typically corresponds to every 8 hours. Confusing TID with QID may lead to missed doses and subtherapeutic drug levels. Medication timing directly affects pharmacokinetics and therapeutic effectiveness.
C. Four times daily: QID is the standard abbreviation for administering a medication four times per day, usually spaced evenly across waking hours. This dosing schedule is often used for drugs requiring consistent serum levels. Correct interpretation supports medication safety and efficacy.
D. Every other day: Every-other-day dosing is abbreviated as QOD and represents a much lower frequency. Misinterpreting QID as QOD could result in significant treatment failure. Precise understanding of abbreviations is a core medication safety principle.
Correct Answer is A
Explanation
A. Document the administration: Accurate and timely documentation immediately after giving a medication is essential for patient safety, legal compliance, and continuity of care. It confirms the medication was administered, records the dose and route, and serves as a communication tool for the healthcare team.
B. Predict side effects: While anticipating side effects is part of safe medication management, it is done prior to administration and ongoing monitoring, not immediately after giving the medication. Predicting side effects alone does not fulfill legal or safety responsibilities.
C. Repeat the administration: Repeating a medication unnecessarily can cause overdose or adverse effects. Verification of correct dose occurs before administration, not afterward, so repeating is not appropriate.
D. Delay action: Delaying action after administering a medication risks missing documentation and monitoring for immediate adverse reactions. Prompt post-administration actions are critical for safe and accountable nursing practice.
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