What is used as the standard pressure for segmental arterial studies?

What is number #1 pointing to?

During performance of a vascular examination, you adjust the system parameters to improve the image.  Which of the following parameters would increase acoustic exposure?

Which vein is being demonstrated below by the letter A?

What is another term for thromboangitis obliterans?

A Doppler spectral waveform demonstrating high resistance features would normally be found in which of the following arteries?

In the sagittal view, color flow imaging displays flow within the greater saphenous vein as blue; during a valsalva maneuver venous flow is displayed in red.  This most likely signifies:

The renal arteries arise from the aorta: 

Based upon your knowledge of peripheral vascular anatomy, which structure is visualized below and pointed out by the blue arrow?      

Which of the following arteries does NOT arise from the subclavian artery?