Which abbreviation refers to the right ear?

The abbreviation that refers to the right ear is "AD," which stands for "auris dextra" in Latin. Understanding this terminology is crucial in healthcare, especially in fields like audiology or when documenting hearing assessments. "AD" specifically indicates the right ear in medical records, prescriptions, or audiograms, thus ensuring clear communication about the patient's auditory health needs.

The other abbreviations serve different purposes: "AS" refers to the left ear (auris sinistra), "AU" means both ears (auris unitas), and "IR" does not pertain to ear designations and thus is irrelevant in this context. Familiarity with these terms is essential for anyone involved in patient care, ensuring both accuracy in documentation and clarity in treatment plans.