kiranmayi
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A 78-year-old woman has a mean arterial pressure of 120 mm Hg and a heart rate of 60/min. She has a stroke volume of 50 mL, cardiac output of 3000 mL/min, and a right atrial pressure of 0 mm Hg. What is the total peripheral resistance (in mm Hg/mL/min) in this woman?
A. 0.01
B. 0.02
C. 0.04
D. 0.08
E. 0.10
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| no more a loser
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0.04
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| asmi
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B..0.02
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| dxtxpx
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TPR=Mean Arterial Press/ Cardiac Output
=120/3000
=0.04
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| kiranmayi
Forum Guru
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The correct answer is C. Total peripheral resistance (TPR) is equal to the pressure gradient across the circulation (mean arterial pressure - right atrial pressure) divided by the cardiac output. Thus, TPR = 120/3000 = 0.04 mm Hg/mL/min.
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| asmi
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opps my mistake...i did right but wrote wrong.. :oops: yes its 0.04
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