Glomerular Diseases USMLE Step 1 Practice Question
A 51-year-old man with biopsy-confirmed membranous nephropathy presents with sudden left flank pain and gross hematuria. Vital signs: BP 156/94, HR 102, RR 18, Temp 37.2°C, SpO2 98%. He denies fever or recent trauma. Serum albumin is 2.1 g/dL; urinalysis shows 3+ protein. CT angiography confirms left renal vein thrombosis. Loss of which of the following proteins in the urine most directly contributed to this hypercoagulable state and thrombotic complication?
Answer choices
- AAntithrombin IIICorrect answer
- BErythropoietin
- CCeruloplasmin
- DTransferrin
- EHaptoglobin
- FProtein C
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