Which of the following statements is true about the abbreviation NPO?

• A. NPO means 'normal pulse observed' in medical records.
• B. NPO refers to a type of skin infection.
• C. NPO stands for 'nothing by mouth' and indicates that a patient should not eat or drink anything.
• D. NPO is an abbreviation for a layer of the epidermis.

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by understanding the abbreviation 'NPO'. In medical terminology, abbreviations are commonly used to convey specific instructions or conditions.
2. Step 2: Clarify the meaning of 'NPO'. It stands for 'nothing by mouth' (Latin: 'nil per os'), which is a directive indicating that a patient should not consume food or liquids orally.
3. Step 3: Evaluate the incorrect options provided in the problem. For example, 'normal pulse observed' is not a recognized meaning of NPO, nor does it refer to a skin infection or a layer of the epidermis.
4. Step 4: Relate the term 'NPO' to its practical application in healthcare. It is often used before surgeries, medical procedures, or when a patient has conditions requiring fasting to prevent complications.
5. Step 5: Confirm that the correct answer is: 'NPO stands for nothing by mouth and indicates that a patient should not eat or drink anything.' This aligns with its standard usage in medical practice.