A 65-Year-Old Man Told His Physician That He Could Walk $50 \mathrm{yd}(46 \mathrm{~m})$

A 65-year-old man told his physician that he could walk only about $50 \mathrm{yd}(46 \mathrm{~m})$ before a cramp-like pain in his left leg forced him to rest. After a thorough physical examination, a diagnosis of severe intermittent claudication of the left leg was made.
-The following findings in this patient supported the diagnosis except which?

A) His femoral pulses were normal in both legs.
B) The popliteal, posterior tibial, and dorsalis pedis pulses were present in the right leg and completely absent in the left leg.
C) Arteriography revealed a blockage of the left femoral artery at the level of the adductor tubercle.
D) The lower part of the left leg was receiving its blood supply through the muscular and genicular branches of the femoral artery and the muscular and genicular branches of the popliteal artery.
E) The collateral circulation in the left leg was adequate to prevent gangrene but was insufficient to supply oxygen to the active leg muscles.
F) The perforating branches of the profunda femoris artery did not participate in the collateral circulation around the blocked femoral artery.