can you please explain how to use this formula.  Mean Arterial Pressure(MAP)=CO x PR CO=SV x HR

The following patient all has severe edema for different reasons. Your challenge is to explain the cause of the edema. In each case, try to explain the edema in terms of either an increase or a decrease in one of the four pressures that cause bulk flow at capillaries. A picture may be useful. Patient : Mr. Herrera  Mr. Herrera is arriving in an ambulance in anaphylactic shock due to a bee sting. During anaphylactic shock, the capillaries become leaky, and plasma proteins that normally stay inside the blood vessels “escape” into the interstitial fluid. Which pressure is altered in this case, and how is it causing edema?

What is the Q-T interval of the resting  EKG trace?

Given: Capillaries are where the magic of gas diffusion happens. Capillaries are approximately 5-10 µm in diameter.  Let’s pick an average value of 7.5 µm. A normal value of the diameter of an aortic artery is 15 mm. a.  What would the Reynolds number be for blood in each vessel?