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6 Cards in this Set

  • Front
  • Back
what is the most common, and most significant, cause of acute renal failure?
ATN, acute tubular decrosis
describe the clinical picture seen in ATN, acute tubular necrosis. describe the successive stages that can develop
TUBULAR CELL CASTS and RBCs in urine, oliguria, hyperKalemia
stage 2 - becomes polyuria, low Na, K and Ca
-stage 3 - after 2 weeks, regeneration has occured - complications will occur
how do areas of necrosis differ in toxic vs ischemic ATN
toxic - diffuse necrosis (prox tubule), intact BM
ischemic - segmental/dispersed, with rupture of BM - tubulorhexis
etiology of toxic ATN and ischemic ATN?
toxic - ethylene glycol (will have Ca Oxalate crystals), antibacterials (aminoglycosides, etc),
ischemic - hypovolemic shock (septicemia, burns, mismatch tranfusion), cardiogenic shock
etiology and Dx factors of acute vs chronic interstitial nephritis:
acute: caused by methicillin, Dx with high eosinophils in urine and IgE
chronic: caused by aspirin and phenacetin, lead to papillary necrosis, will see lymphocytes in urine
renal changes after multiple myeloma
obstruction in tubules due to viscous light chain casts
-amyloidosis, calcinosis secondary to bone destruction