Which abbreviation indicates that a patient should have nothing by mouth?

The abbreviation that indicates a patient should have nothing by mouth is NPO, which stands for "nil per os" in Latin. This term is commonly used in medical settings to instruct that a patient must refrain from eating or drinking anything. This instruction is crucial for various reasons, such as preparing for surgery, certain medical tests, or when a patient has digestive issues or is unable to swallow safely.

Understanding the significance of NPO is vital for ensuring patient safety and effective medical treatment. It is a standard protocol in healthcare that helps prevent complications related to ingestion, particularly when anesthesia or specific medical procedures are involved. Knowing this abbreviation is an essential part of medication administration and patient care.