What S Diastolic Blood Pressure

We ll tell you why.

What s diastolic blood pressure. A blood pressure reading will show the systolic blood pressure number first and diastolic blood pressure second. Low diastolic blood pressure is when the lower number in your blood pressure reading falls below 60 mm hg. After the heart is finished contracting the cardiac ventricles relax momentarily so that they can be refilled with blood in. It measures the force of blood against your artery walls as your heart relaxes and the ventricles are allowed to refill with blood.

Blood pressure bp is the pressure of circulating blood on the walls of blood vessels most of this pressure is due to work done by the heart by pumping blood through the circulatory system used without further specification blood pressure usually refers to the pressure in large arteries of the systemic circulation blood pressure is usually expressed in terms of the systolic pressure. What is diastolic blood pressure. The blood pressure reading is measured in millimeters of mercury mmhg and is written as systolic pressure the force of the blood against the artery walls as your heart beats over diastolic. Your diastolic blood pressure is the bottom number on your reading.

A doctor will assess a person s blood pressure by considering both numbers. If your blood pressure is elevated systolic blood pressure between 120 and 129 or diastolic blood pressure of less than 80 your doctor will probably want to check it every 3 6 months. The diastolic reading or the bottom number is the pressure in the arteries when the heart rests between beats.