PATHOLOGY

Detailed explanation-1: -Blood pressure is measured in millimetres of mercury (mmHg) and is given as 2 figures: systolic pressure – the pressure when your heart pushes blood out. diastolic pressure – the pressure when your heart rests between beats.

Detailed explanation-2: -We record this with the systolic pressure first (on the top) and the diastolic pressure second (below). For example, if the systolic pressure is 120 mmHg (millimetres of mercury) and the diastolic pressure is 80 mmHg, we would describe the blood pressure as ‘120 over 80’, written 120/80.

Detailed explanation-3: -The diastolic pressure, which is the bottom number, is how much pressure your arteries are under between heartbeats. These pressures are measured in millimeters of mercury (abbreviated “mmHg” because of the elemental symbol for mercury).