What is the abbreviation for "systolic over diastolic" pressure?

The abbreviation "S/D" effectively represents "systolic over diastolic" pressure, which is a common way to describe blood pressure readings. In this context, the letter "S" stands for systolic pressure, which is the pressure in the arteries when the heart beats and pumps blood. The letter "D" stands for diastolic pressure, which is the pressure in the arteries when the heart is at rest between beats.

This straightforward abbreviation helps both healthcare professionals and patients easily communicate and understand blood pressure values. Other potential abbreviations do not accurately convey the concept of systolic and diastolic measurements in the widely accepted format. For instance, adding an "s" or using different combinations creates confusion and is not recognized in clinical practice for this specific measurement. Hence, "S/D" is the recognized and correct abbreviation for systolic over diastolic pressure.