Which abbreviation represents 'four times a day' in medication dosing?

The abbreviation that represents "four times a day" in medication dosing is "qid." This abbreviation originates from the Latin phrase "quater in die," which literally translates to "four times a day."

Understanding these abbreviations is essential in the healthcare field, as they help convey important information succinctly and clearly about how often a patient should take their medication.

The other options refer to different dosing frequencies: "tid" stands for "three times a day," "bid" means "twice a day," and "qd" indicates "once a day." Knowing these distinctions ensures accurate medication administration and helps prevent potential medication errors.