A 60 year-old woman visits her physician for her annual physical examination. She is concerned if she might have osteoporosis. Her older sister was diagnosed with osteoporosis when she was 60 years old. She smokes one pack of cigarettes every day for 35 years. She doesn’t take any medications or vitamins. She is thin and her BMI is 19. What is the most appropriate test to show if this patient has osteoporosis? A- Serum calcium level B- Ultrasound of the head C- X-ray of the spine D- Dual energy x-ray absorptionmetry of the hip E- Bone biopsy of the iliac crest http://medical-usmle.com/?p=809
