Blood pressure in children

The formula for calculating children's blood pressure can be calculated by systolic pressure equal to eighty plus age multiplied by two. Diastolic pressure should be 2/3 of systolic pressure. Cuffs with different widths should be selected according to different ages. The width of cuff should be 1/2-2/3 of the length of upper arm normally. The improper size of cuff may affect the accuracy of measurement. When it is too wide, the measured blood pressure value may be lower than the actual value, and when it is too narrow, it will be higher than the actual value. When measuring blood pressure, try to make the child measure in a quiet state, not after crying and violent activities, which will affect the accuracy of measurement.