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What is the correct interpretation if a medication is prescribed to be taken every two hours?
q.i.d.
q.o.d.
q.2h.
p.r.n.
The correct answer is: q.2h.
The answer is correct because "q.2h." specifically denotes a medication regimen of taking the medication every two hours. This abbreviation, derived from Latin, stands for "quaque 2 hora," which translates to "every two hours." This clear and precise notation is essential in medical prescriptions as it ensures that patients and healthcare providers understand the intended frequency of administration. In contrast, the other choices represent different frequencies or conditions for medication intake. For instance, "q.i.d." means "quater in die," or four times a day, which does not align with a two-hour interval. "q.o.d." signifies "quaque altera die," indicating every other day, which is also not relevant to a two-hour schedule. Lastly, "p.r.n." stands for "pro re nata," which means "as needed," indicating a medication that is taken only when specific symptoms present themselves, rather than on a regular schedule. Therefore, "q.2h." is the appropriate interpretation for the prescribed medication administration every two hours.