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we all knows that in prerenal azotemia the bun : creatinine >15:1
becuz the GFR decreased and reabsorbtion or urea increase
and when we see glomerulonephritis we find that main patholgy is also decrease GFR , but we find its bun:creatinine< 15:1 . So What make glomerulonephritis differ than pre renal azotemia in pathology( decrease GF) and make it difffer also in bun :creatinine ratio ?! i see both decrease GF by diffrent mechanism thats all , but they differ in results!
becuz the GFR decreased and reabsorbtion or urea increase
and when we see glomerulonephritis we find that main patholgy is also decrease GFR , but we find its bun:creatinine< 15:1 . So What make glomerulonephritis differ than pre renal azotemia in pathology( decrease GF) and make it difffer also in bun :creatinine ratio ?! i see both decrease GF by diffrent mechanism thats all , but they differ in results!