Predisposing factors for chronic limb ischaemia are all except: (A) Diabetes mellitus, (B) Hyperbilirubinemia, (C) Hyperlipidemia, (D) Renal insufficiency
Answer is B. Risk factors for chronic limb ischaemia :

Age.
Smoking.
Hyper homocystinemia.
Diabetes.
Renal insufficiency.
Dyslipidemia.