Question
A 34-year-old female is brought to the emergency room by EMS after a seizure during dinner. Her past medical history includes arthritis, which has developed in the last few years. On a recent visit to her family physician for complaints of fatigue, she was found to have a serum leukocyte count of 3.3 × 109/L and a urine dipstick positive for protein, but negative for leukocyte esterase and glucose. Of the following, which is the most likely mechanism for the protein in her urine?
| A. |
An undiagnosed neoplasm |
| B. |
A urinary tract infection |
| C. |
Antibodies directed against the basement membrane |
| D. |
Deposition of antigen-antibody complexes in the glomeruli |
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