In labeling, what does OU specify?

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Multiple Choice

In labeling, what does OU specify?

Explanation:
OU means both eyes. It comes from the Latin oculus uterque and tells you to apply the medication to each eye, not just one. This is different from OD (right eye) and OS (left eye), which specify a single eye. A similar shorthand AU exists for both ears, but that applies to ears, not eyes. So when labeling uses OU, the instruction is bilateral treatment for the eyes.

OU means both eyes. It comes from the Latin oculus uterque and tells you to apply the medication to each eye, not just one. This is different from OD (right eye) and OS (left eye), which specify a single eye. A similar shorthand AU exists for both ears, but that applies to ears, not eyes. So when labeling uses OU, the instruction is bilateral treatment for the eyes.

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