4 doctors weighed in:
What is the relationship between hypertension and cardiac output?
4 doctors weighed in

Dr. Michael Fenster
Internal Medicine - Cardiology
2 doctors agree
In brief: Mathematical
The relationship can be expressed as a variant of darcy' law; flow (q) = pressure/resistance.
In the human circulatory system: q = (map – rap)/tpr (map = mean aortic (or arterial) blood pressure in mmhg, RAP = mean right atrial pressure in mmhg and tpr = total peripheral resistance in dynes-sec-cm-5.) however, as map>>rap, , this can be simplified to: q~map/tpr. Map is obviously affected by htn.

In brief: Mathematical
The relationship can be expressed as a variant of darcy' law; flow (q) = pressure/resistance.
In the human circulatory system: q = (map – rap)/tpr (map = mean aortic (or arterial) blood pressure in mmhg, RAP = mean right atrial pressure in mmhg and tpr = total peripheral resistance in dynes-sec-cm-5.) however, as map>>rap, , this can be simplified to: q~map/tpr. Map is obviously affected by htn.
Dr. Michael Fenster
Dr. Michael Fenster
Thank
1 comment
Dr. Gopinath Upamaka
Haha. He asked!
Dr. Bennett Werner
Internal Medicine - Cardiology
In brief: Complicated
The equation is: co equals bp/total peripheral resistance.
If tpr is constant, co rises when BP rises but since that isn't the case, there is a complicated relationship between co and BP which tends to be unpredictable. Tpr is the resistance of the blood vessels and depends on blood viscosity, radius of the vessels to the 4th power, and length and # of vessels & depends on arteriolar tone.

In brief: Complicated
The equation is: co equals bp/total peripheral resistance.
If tpr is constant, co rises when BP rises but since that isn't the case, there is a complicated relationship between co and BP which tends to be unpredictable. Tpr is the resistance of the blood vessels and depends on blood viscosity, radius of the vessels to the 4th power, and length and # of vessels & depends on arteriolar tone.
Dr. Bennett Werner
Dr. Bennett Werner
Thank
Get help from a real doctor now
Dr. Peter Kurzweil
Board Certified, Internal Medicine
46 years in practice
16M people helped
Continue
108,000 doctors available
Read more answers from doctors