Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.560 m below the heart. calculate the pressures you would observe (in units of mm hg) if the pressure at the heart were 119 over 80 mm hg. assume there is no loss of pressure due to resistance in the circulatory system (a reasonable assumption, since major arteries are large).

Question

Physics

Evelin Stevens

5 October, 19:45

Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.560 m below the heart. calculate the pressures you would observe (in units of mm hg) if the pressure at the heart were 119 over 80 mm hg. assume there is no loss of pressure due to resistance in the circulatory system (a reasonable assumption, since major arteries are large).

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Roach · Answer 1

The first pressure describes the illustration of the extreme output of the heart; the second is because of the elasticity of the arteries in maintaining the pressure between beats.

Solution:

760 mm HG is equivalent to 13.6*.760 m = 10.34 m H2O

Then multiply: 560/10.34 * 760mmHg to each of the readings. The answer is about 41 mmHg add this to the current reading of 120/80

Therefore: ΔP = 41 mm Hg, Leg blood pressure is 160/121.