Master Canadian Nursing Abbreviations 2025 - Free Nursing Abbreviation Practice Questions and Study Guide

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What is the meaning of 'NPO' in medical terminology?

Nocturnal Pulse Oximetry

Non-Parenteral Opioids

Nothing by Mouth

NPO stands for "nothing by mouth" in medical terminology. This means that a patient is not allowed to consume any food or liquids, usually before a medical procedure or surgery. The other options may seem plausible, but they do not accurately represent the commonly understood meaning of NPO in the medical field. Nocturnal pulse oximetry (A) refers to a test that measures oxygen levels in the blood during sleep, Non-parenteral opioids (B) are pain medications that are not injected, and Near patient observation (D) typically refers to monitoring a patient's condition and vital signs regularly in a hospital setting. All of these options are related to medical terminology, but they do not match the specific meaning of NPO. This is why the correct answer is C.

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Near Patient Observation

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