What is the role of kidney function studies in the workup of poststreptococcal glomerulonephritis?

Updated: Dec 16, 2020
  • Author: Duvuru Geetha, MD, MRCP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Elevated blood urea nitrogen (BUN) and serum creatinine values reflect the decrease in the glomerular filtration rate that occurs in the acute phase. The elevations are usually transient.Their failure to normalize within several weeks or months indicates that the patient may not have a true APSGN and suggests seeking an alternative diagnosis. Patients who have the crescentic form of glomerulonephritis have rapid deterioration and, often, incomplete recovery of kidney function.


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