A patient reports that she is having increasing difficult…

A patient reports that she is having increasing difficulty because she experiences severe pain in her calf muscles after walking for more than a city block. The pain subsides if she rests for a few minutes, but returns when she resumes walking. Her feet are cool and pale, and the dorsal pedis and posterior tibial pulses are difficult to palpate. She lives in an inner city apartment on the ground floor and uses public transportation to travel across town to visit her husband’s grave weekly.