The same total number of daily doses is indicated by both abbreviations in which of the following pairs?

Rationale

b.i.d. and q12h indicate the same total number of daily doses.

Both abbreviations signify that a medication is to be administered twice a day. The term b.i.d. (bis in die) means "twice a day," while q12h (every 12 hours) also results in two doses over a 24-hour period, confirming their equivalency in dosing.

A (t.i.d. and q6h) YOUR ANSWER

t.i.d. (ter in die) indicates that a medication is to be taken three times a day. In contrast, q6h (every 6 hours) results in four doses in a 24-hour period. Therefore, these two dosing schedules do not represent the same total daily doses.

B (q.i.d. and q8h) YOUR ANSWER

q.i.d. (quater in die) means that a medication should be administered four times a day. Meanwhile, q8h (every 8 hours) also results in three doses over 24 hours. As such, these two abbreviations do not indicate the same total number of daily doses.

C (b.i.d. and q12h) CORRECT

Both b.i.d. and q12h refer to administering a medication two times within a 24-hour period, making them equivalent in terms of total daily doses. This alignment in dosage frequency is why they are considered interchangeable.

D (q.o.d. and q4h) YOUR ANSWER

q.o.d. (quaque altera die) signifies that a medication is to be administered every other day, which results in only one dose every two days. On the other hand, q4h (every 4 hours) results in six doses in a 24-hour period. Thus, these two schedules clearly do not correspond to the same total daily doses.

Conclusion

In conclusion, b.i.d. and q12h both indicate the administration of medication twice daily, making them the only pair among the options that share the same total number of daily doses. The other choices differ in their dosing frequency, highlighting the importance of understanding medication abbreviations to ensure proper administration.

The same total number of daily doses is indicated by both abbreviations in which of the following pairs?

b.i.d. and q12h indicate the same total number of daily doses.

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