What are the systolic and diastolic blood pressures?
Blood pressure readings are measured in millimeters of mercury (mmHg) and usually given as 2 numbers. For example, 110 over 70 (written as 110/70). The top number is the systolic blood pressure reading. It represents the maximum pressure exerted when the heart contracts. The bottom number is the diastolic blood pressure reading. It represents the pressure in the arteries when the heart is at rest. To obtain your blood pressure measurement, your health care provider will wrap the blood pressure cuff snugly around your upper arm, positioning it so that the lower edge of the cuff is 1 inch above the bend of the elbow. The health care provider will locate the large artery on the inside of the elbow by feeling for the pulse and will place the head of the stethoscope over this artery, below the cuff. It should not rub the cuff or any clothing because these noises may block out the pulse sounds. Correct positioning of the stethoscope is important to get an accurate recording. Your health care
