What does "AU" refer to in medication administration?

In medication administration, "AU" stands for "both ears." This abbreviation comes from the Latin term "auris uterque," which means "either ear" or "both ears." It is important in medical contexts to clearly specify the administration routes for medications, especially those that may be used in either one or both ears, such as ear drops.

Using "AU" ensures that healthcare providers understand the intended application for treatment, helping to avoid potential errors that could occur if the instruction were ambiguous. This precision is crucial for effective patient care. Understanding these abbreviations is essential for anyone involved in medication management, as it facilitates communication among healthcare professionals and supports proper medication administration to patients.