What does the abbreviation QD refer to in medication administration?

The abbreviation QD stands for "quaque die," which is a Latin term meaning "once a day." In medication administration, this abbreviation is used to indicate that a medication should be taken or administered one time every 24 hours. It's important for healthcare professionals to understand this terminology, as it helps ensure proper dosing schedules and improves patient safety. Knowing that QD is not interchangeable with frequencies such as "every other day" or multiple doses in a day is crucial for effective medication management.