A 19-year-old college student presents with gross hematuria one day after acute pharyngitis onset. He reports three similar episodes over two years, each resolving spontaneously without treatment. Vital signs: BP 118/76 mmHg, HR 88/min, RR 16/min, Temp 37.2°C, SpO2 98% on room air. Serum creatinine is 0.9 mg/dL. Serum complement levels are normal. Urinalysis shows no proteinuria. Which diagnosis best explains his recurrent episodic hematuria?
- A)Alport syndrome
- B)IgA nephropathyGABARITO
- C)Minimal change disease
- D)Membranoproliferative glomerulonephritis
- E)Poststreptococcal glomerulonephritis
Explicação
IgA nephropathy classically causes episodic hematuria that occurs within days of an upper respiratory or gastrointestinal infection because abnormal IgA immune complexes deposit in the mesangium. Normal complement levels and recurrent synpharyngitic hematuria ... Ver explicação completa e trilha adaptativa →