A 33 year-old woman visits her physician for evaluation of progressive fatigue and muscle aches. She lives in Texas after she emigrated from South Korea last year. She has lost 25 Ib and has arthralgias and low grade fever over the last six months. Last week, she noted back pain in the area between her shoulder plades. She works at a convenient store and she thought that all her symptoms are due to lifting heavy boxes. She looks tired, her pulse is 105/min and her blood pressure is 70/40 mmHg. She has normochromic, normocytic anemia and her platelet count is 750,000/uL. Her leukocyte count is normal and her erythrocyte sedimentation rate is 130/h. What is the most likely diagnosis? A- Hemolytic anemia B- Iron deficiency anemia C- Takayasu's arteritis D- Idiopathic thrombocytopenic pupura http://medical-usmle.com/?p=860
