A 7-year-old boy presents 2 weeks after a streptococcal throat infection with cola-colored urine, facial edema, and hypertension (BP 130/85). Urinalysis shows hematuria with RBC casts. Serum creatinine is 1.2 mg/dL (elevated for age). Serum C3 complement is low; C4 is normal. Throat culture is negative. Which of the following is the most likely diagnosis?
- A)IgA nephropathy
- B)Lupus nephritis
- C)Post-streptococcal glomerulonephritisGABARITO
- D)Membranoproliferative glomerulonephritis
- E)Hemolytic uremic syndrome
Explicação
Post-streptococcal GN (PSGN) is the most common GN in children, occurring 1-3 weeks after streptococcal infection. Classic presentation includes hematuria, hypertension, edema, and selectively low C3 (normal C4). Renal function may transiently decline but typi... Ver explicação completa e trilha adaptativa →