A medical assistant reviews a prescription labeled take one tablet PO BID. The patient asks what BID means. Which explanation is correct?
Answer choices
- ATake twice daily
- BTake once daily
- CTake only as needed for pain
- DTake at bedtime only
About this question
What does BID mean on a prescription? Medical abbreviation literacy is core Foundational Knowledge for CCMA candidates. Patients ask MAs to translate sig codes, and exam writers mix BID, TID, QID, and PRN to catch superficial memorization. Read the wording and clinical context closely; those details determine the NHA CCMA competency being tested.
This item asks for the correct explanation of BID. BID means twice daily (bis in die). Common traps are confusing BID with TID (three times daily) or QID (four times daily). Teach the Latin-rooted frequency codes as a set, then separately drill PRN as “as needed,” not a fixed clock schedule. For what does bid mean on a prescription, restate the deciding rule without looking at the options, then check your recall.
Reveal answer & explanationShow
Correct answer
- ATake twice dailyCorrect
- BTake once daily
- CTake only as needed for pain
- DTake at bedtime only
Basic rationale
BID is a Latin abbreviation meaning twice daily.
Option explanations
- A: Correct. BID means bis in die, or twice daily.
- B: Once daily is abbreviated QD, not BID.
- C: As needed is abbreviated PRN.
- D: Bedtime dosing is abbreviated QHS.
Deep Analysis
Core logic
BID stands for bis in die, meaning two times per day. QD means once daily, PRN means as needed, and QHS means at bedtime.
Distractor analysis
B: Incorrect because QD means once daily, not twice daily. C: Incorrect because PRN means as needed rather than on a fixed twice-daily schedule. D: Incorrect because QHS means every night at bedtime, not twice during the day.
Exam trap
BID equals two times a day. Do not confuse with QD once daily or TID three times daily.
Memory tip
B in BID sounds like bi, meaning two times daily.
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