Typically diagnosed by acute nephritis + recent GAS infection (strep pharyngitis, impetigo)
CBC
Chem 7
Streptozyme assay including ASO
Complement C3, C4, C50
Urinalysis (dysmorphic red blood cells, varying degrees of proteinuria, red blood cell casts, and pyuria)
Post-streptococcal glomerular nephritis
Poststreptococcal glomerulonephritis
IgA nephropathy
Hemolytic-uremic syndrome
Contrast-induced nephropathy
Henoch-Schonlein purpura
Emphysematous pyelonephritis
Polycystic kidney disease