How does the blood pressure taken in the popliteal artery standing compare to brachial artery while sitting?

Question

How does the blood pressure taken in the popliteal artery standing compare to brachial artery while sitting?

Answer 1

Standing or lying, the leg pressures will be higher. It's more usual to take the blood pressure at the ankle (posterior tibial aa.) as a screening tool, taking the more proximal pressure only if the former is abnormal.

An ankle/brachial ratio of about 1.5 is normal, and <1.0 is generally pathologic.