What is the meaning of range on a blood pressure cuff?
Blood pressure cuffs measure systolic and diastolic pressure in millimeters of mercury (mm Hg). Systolic pressure is the blood pressure within arteries as the heart muscle contracts. Diastolic pressure refers to the period when the heart chambers are refilling with blood after a heart contraction. Normal range systolic measurements are between 120 and 140, and normal range diastolic readings are between 70 and 90.