Certified Paraoptometric (CPO) Practice Exam 2025

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Question: 1 / 420

What does "qhs" signify in medication timing?

Four times a day

Three times a day

Every bedtime

The term "qhs" is a Latin abbreviation that stands for "quaque hora somni," which translates to "every bedtime" or "at bedtime." This indicates that a medication should be taken once every night before sleep. Recognizing this timing is crucial in ensuring that patients take their medications correctly, particularly medications that might be intended for nighttime use to minimize side effects or enhance efficacy.

Understanding the significance of the other options provides context: the terms for various other frequencies are distinct and not interchangeable. For instance, "four times a day" or "three times a day" have their own specific abbreviations, while "as needed" is typically represented by "prn" (pro re nata). Familiarity with these terms is essential for accurate medication administration and patient education.

Certified Paraoptometric (CPO) Practice Exam 2025

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