UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0760

Question:
A boy has had chronic anemia throughout childhood. Investigations have revealed a hereditary form of anemia in which the normally round red blood cells become sickle-shaped. He has experienced severe bone pains in the past crises each year, treated with hydration and pain medication. He now complains of left hip pain. A bone scan demonstrated a cold area. A likely aetiology is :

a) septic emboli
b) impaired venous drainage
c) Hgb SS disease
d) steroid use
e) alcoholism