How is the term PO used in medical contexts?

In medical contexts, the term "PO" is commonly understood to mean "by mouth." This term is used to describe the route of administration for medications or nutrition, indicating that a substance is taken orally. This is especially important in healthcare settings, as it helps to clarify how a patient is to receive medications or food, distinguishing it from other routes of administration such as intravenous (IV) or intramuscular (IM).

The use of "PO" is significant because it helps healthcare professionals communicate clearly about treatment plans and ensures that patients receive their medications or meals in the appropriate manner. It allows for consistency in understanding among different members of the healthcare team and is a standard abbreviation recognized in medical documentation and practice.