435) A 29 year old woman is seen in your office for fatigue and exertional shortness of breath of 2 week duration. Past medical history is significant for hospitalization for splenic vein thrombosis 1 year ago. She received heparin 1 year ago and therafter, coumadin for 6 months. She is off anticoagulation now. Physical examination is unremarkable. Laboratory Studies reveal
WBC 2400/µl
HGB: 6.8 gm%
MCV 84 fl
Platelets : 80k/µl
Reticulocyte count 4.5%
Haptoglobin : Undetectable
Lactic Dehydrogenase (LDH) 800U/L
Direct Coombs Test : Negative
Which of the following is the best step in diagnosing this condition?
A) Hemoglobin Electrophoresis
B) Flow cytometry
C) Osmotic Fragility Test
D) Urine Hemosiderin
E) Heparin Antibody Testing
Filed under: Uncategorized, USMLE Test Prep | Tagged: archer general internal medicine, Archer hematology, Hematology, usmle hematalogy, USMLE step 3 Hematology | 18 Comments »
