What does q 12 h indicate?

What does q 12 h indicate?

• A. Every 6 hours
• B. Every 24 hours
• C. Every 12 hours
• D. Twice daily

Answer: (C)

In medical dosing, the letter “q” stands for “every,” and the number followed by hours tells you the interval between doses. So q12h means every 12 hours. That spacing places doses about twice in a 24-hour day, usually morning and evening. It’s not every 6 hours (that would be q6h) and not every 24 hours (that would be q24h). The explicit interpretation the question asks for is “every 12 hours,” which is why that choice is the best match.

In medical dosing, the letter “q” stands for “every,” and the number followed by hours tells you the interval between doses. So q12h means every 12 hours. That spacing places doses about twice in a 24-hour day, usually morning and evening. It’s not every 6 hours (that would be q6h) and not every 24 hours (that would be q24h). The explicit interpretation the question asks for is “every 12 hours,” which is why that choice is the best match.