Abbreviations

Obstetrics and gynecology: the medical specialty for pregnancy, birth and the female reproductive system, or a doctor in it.

The US federal agency, part of the Department of Labor, that sets and enforces rules to keep workplaces safe.

An abbreviation that has been used for right eye, for once daily and for overdose.

An abbreviation for orange juice that ISMP advises against in medication orders.

Operating room, the hospital room where surgery is done; in research articles OR can also mean odds ratio.

A curved plastic device placed in the mouth over the tongue to keep the tongue from falling back and blocking the throat.

Open reduction internal fixation: surgery that opens the skin to line up a broken bone and hold it with plates, screws or rods.

A high-level disinfectant used for flexible endoscopes and other semi-critical items; it is called OPA.

An abbreviation for left eye, from the Latin oculus sinister.

An old abbreviation for "both eyes" that should not be used; write "each eye" or "both eyes" instead.

An abbreviation for oxytocin; ISMP advises writing the full drug name.