Blood pressure is normally taken on the upper arn at the level of the heart. has

Question

Blood pressure is normally taken on the upper arn at the level of the heart. has his arms in a cast so you cannot take his blood pressure in the usual way take the blood pressure at his calf, which is 85.5 cm below his heart, what would be the magnitude of difference between this measurement of blood pressure and a normal blood pressure measurement? The density of blood is 1060 kghm however, that a patient have him stand up and Number mmHg Is the blood pressure measured in the caff larger or smaller than the blood pressure measured on the upper arm? smaller O larger

Explanation / Answer

delta(P) = rho g h  

delta(P) = (1060 kg / m^3) (9.8 m/s^2) (0.855 m )

delta(P) = 8881.74 Pa  

delta(P) (in mmHg) = 66.6 mmHg ......Ans

Calf is at lower position so pressure will be greater.

Ans: Larger.

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