Which abbreviation corresponds to the right ear in a prescription?

The abbreviation that corresponds to the right ear in a prescription is AD, which stands for "auris dextra" in Latin. In the context of prescriptions, this term is specifically used to indicate medications that are to be administered in or around the right ear. Understanding these abbreviations is crucial for accurate dispensing and administration of medications, especially in the context of otic (ear-related) treatments.

In contrast, the other abbreviations have distinct meanings relevant to other anatomical locations. OS refers to the left eye (auris sinistra), AU refers to both ears (auris unitas), and AS denotes the left ear (auris sinistra). Familiarity with these terms helps prevent medication errors and ensures that patients receive the correct treatment for their specific conditions.