What do you mean by systolic and diastolic pressure write its unit and instrument?
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he top number refers to the amount of pressure in your arteries during contraction of your heart muscle. This is called systolic pressure. The bottom number refers to your blood pressure when your heart muscle is between beats. This is called diastolic pressure.unit is "120 over 80" or "120/80 mmHg."instrument used for systolic pressure is phygmomanometer blood pressure meter doctors measure systolic and diastolic pressures by oscillometric detection
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