What hemodynamic changes occur downstream secondary to the presence of significant arterial obstructive disease?

The following segmental pressures were obtained on a patient’s left leg: Highest brachial pressure: 140 mmHg High Thigh: 172 mmHg Above Knee: 140 mmHg Below Knee: 137 mmHg Ankle: 130 mmHg   Of the options below, which vessel is likely diseased based on pressures provided?

Which of the following is not a symptom of acute arterial occlusion?

Post exercise testing, if the pressures return to resting values after 8 minutes, what does this indicate?

Valves must be lysed for the following:

What absolute toe pressure indicates poor chance of foot ulcers’ healing?

Patient has symptoms of intermittent claudication but initial segmental pressure values are within normal limits. What is the appropriate next step?  

When the arteriolar bed cannot dilate further and blood flow to the extremity is reduced due to proximal arterial disease, what symptom will the patient likely experience?

With which type of bypass graft will there be a size discrepancy between the graft and the native artery at both the proximal and distal anastomotic sites?

Extra Credit – 1/2 the points will come from answer and 1/2 will come from the rationale.  Which type of incentive would work best in the modern society? Why?