Blood is flowing through an aorta of 1.0 cm diameter at an average velocity of 50 cm/s. The mean pressure is 100 mm Hg, The blood enters a stenosis where the aortic diameter is 0.5 cm. What is the appropriate pressure at the point of maximum stenotic narrowing?
What would the pressure be if the patient exercised and raised their upstream mean velocity to four times normal (200 cm/s)? let blood density be 1.056 g/cc, and let 1 g/cm-sec^2 = 7.5x10^-4 mm Hg