What does "NPO" mean?

Appeared in: NORCET 1 - 2020

Explanation

NPO is a medical abbreviation derived from the Latin phrase nil per os, which means "nothing by mouth" or "nothing per oral".
This instruction means the patient should not consume any food, fluids, or medications taken by mouth.
It is a common order before surgery or certain medical procedures to prevent the risk of aspiration.
NPO may also be ordered for patients with specific gastrointestinal conditions that require the bowel to rest.

Option B: This is not a standard or recognized medical abbreviation. Orders for a new patient are simply called 'admission orders' or 'new orders'.
Option C: This phrase describes the body's normal excretory functions (e.g., urine, stool) but is not a standard medical term or abbreviation.
Option D: The correct abbreviation for non-prescription medications is 'OTC' (Over-The-Counter).

Visual 1: Image - An 'NPO' sign placed above a patient's hospital bed. This visual reinforces the practical application of the order in a clinical setting to alert all staff.
Visual 2: Infographic - A simple chart showing common pre-operative fasting guidelines for clears, breast milk, and solids, highlighting the NPO period.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Common Medical Abbreviations as background academic context rather than a clinical decision trigger.
A nurse's primary responsibility for an NPO patient is to ensure the order is strictly followed to prevent life-threatening complications like aspiration pneumonia.
Nurses must provide frequent oral hygiene to keep the patient's mouth moist and comfortable, as they cannot drink fluids.
Patient education is crucial. The nurse must explain the reason for the NPO status to the patient and their family to ensure compliance and reduce anxiety.

How to Approach the Question

This is a factual recall question testing knowledge of common medical terminology.
First, identify the abbreviation in the question stem: 'NPO'.
Recall the meaning of this abbreviation from your studies. NPO stands for 'nil per os' in Latin.
Translate the Latin phrase to its English equivalent: 'nothing by mouth' or 'nothing per oral'.
Scan the options to find the one that matches this definition.
Eliminate the other options as they are incorrect expansions of the acronym.

Concept Tested & Keywords

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Practise the full NORCET 1 - 2020

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