Case Study: Dark Urine after Strep Throat Answers



5. The probable diagnosis for this patient is acute post-streptococcal glomerulonephritis.  This type of glomerulonephritis is found usually 1 to 2 weeks after a streptococcal infection.  In order for post-streptococcal glomerulonephritis to be diagnosed, the patient must have been infected with specific strains of group A beta-hemolytic streptococci.  These bacteria contain M proteins in their cell walls.  There is a delay in the time between streptococcal infection and glomerulonephritis infection due to the formation of antibodies to the streptococcal bacteria.

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