Which abbreviation corresponds to Nothing by mouth?

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Multiple Choice

Which abbreviation corresponds to Nothing by mouth?

Explanation:
Nothing by mouth is a patient instruction that means no food or fluids should be taken by mouth. This is important before procedures or surgeries to prevent aspiration and to ensure an empty stomach. The abbreviation comes from the Latin nil per os, signaling that nothing should pass through the mouth. One alternative represents a rectal administration route, another indicates medication placed under the tongue, and another is a frequency for dosing. Those meanings are unrelated to the instruction to avoid oral intake, so they do not fit this scenario. NPO is the term that conveys the no-oral-consumption requirement.

Nothing by mouth is a patient instruction that means no food or fluids should be taken by mouth. This is important before procedures or surgeries to prevent aspiration and to ensure an empty stomach. The abbreviation comes from the Latin nil per os, signaling that nothing should pass through the mouth.

One alternative represents a rectal administration route, another indicates medication placed under the tongue, and another is a frequency for dosing. Those meanings are unrelated to the instruction to avoid oral intake, so they do not fit this scenario. NPO is the term that conveys the no-oral-consumption requirement.

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