What is the common abbreviation for administering medication at bedtime?

The abbreviation "hs" stands for "hora somni," which is Latin for "at bedtime." This abbreviation is commonly used in medical and pharmaceutical contexts to indicate that a medication should be taken at night before sleep. By using this abbreviation, healthcare professionals can provide clear and concise instructions to patients, helping to ensure that medications are taken at the appropriate times for optimal effectiveness and adherence to treatment plans.

In contrast, the other options represent different medication administration times: "qam" indicates administering medication every morning, "q4" signifies every four hours, and "stat" refers to giving medication immediately or as quickly as possible. Each of these abbreviations serves a specific purpose, but "hs" is uniquely associated with bedtime dosing.