The formula for calculating mean arterial pressure is MAP= diastolic (systolic-diastolic) /3. if your systolic pressure is 110 and your diastolic is 90 what is your mean arterial pressure? round to nearest tenth

MAP =( 2 times the diastolic + systolic)/3 or (2d + s)/3 where d is diastolic and s is systolic

MAP = 2 (90) + 110/ 3

= 180 + 110 / 3 = 290/3 = 96.66 or 97 mm HG

If we used your formula d (s-d)/3 we would have 90 (20)/3 = 1800/3 = 600. Range is 70-110 mg HG. (Above it looked like you had the diastolic multiplied by the difference of systolic minus diastolic then divided it by 3). Above is the correct formula.

I remembered this formula from nursing school. I was 3 months from graduating when I had to withdraw due to medical issues.