What is the correct abbreviation for number in medication documentation?

The correct abbreviation for "number" in medication documentation is "no." This abbreviation is commonly used in various healthcare settings to denote a numerical quantity, such as the number of tablets a patient is prescribed or the quantity of doses to be taken. Clarity in documentation is crucial for patient safety, and the use of established abbreviations like "no." helps ensure that communication among healthcare providers is clear and consistent.

In the context of this question, the other choices represent different medical terms: "pc." stands for "after meals," relating to when a medication should be taken; "cap." is short for "capsule," referring to a specific form of medication; and "tab." is an abbreviation for "tablet," which indicates another form of medication. Each of these terms serves a distinct purpose and does not relate to quantifying or indicating a number in the medication documentation context.