If a drug order is BID, how often should the dose be administered in 24 hours?

If a drug order is BID, how often should the dose be administered in 24 hours?

• A. Every eight hours
• B. Every 12 hours
• C. Twice a day
• D. Once a day

Answer: (C)

Understanding dosing frequency abbreviations: BID stands for two times per day. In a 24-hour period this means the doses are given about 12 hours apart, resulting in two administrations in one day. Hence “Twice a day” is the correct phrasing. The other options describe different schedules: every eight hours would be three doses in 24 hours, once a day would be one dose, and every 12 hours also means two doses but the common wording aligned with BID is “Twice a day.”

Understanding dosing frequency abbreviations: BID stands for two times per day. In a 24-hour period this means the doses are given about 12 hours apart, resulting in two administrations in one day. Hence “Twice a day” is the correct phrasing. The other options describe different schedules: every eight hours would be three doses in 24 hours, once a day would be one dose, and every 12 hours also means two doses but the common wording aligned with BID is “Twice a day.”