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10 Cards in this Set
- Front
- Back
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2 markers for acute renal injury
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1. acute rise in serum Cr (from previous, from predicted)
2. oliguira |
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4 macrovascular causes of acute renal failure
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1. aortic dissection
2. renal a embolism (Afib) 3. renal a thrombosis 4. renal v thrombosis |
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4 causes of renal vascular vasoconstriction
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1. neurohumeral: sepsis, hepatorenal syndr
2. drugs: NSAIDs, calcineurin inhibs 3. intrinsic toxins: high Ca, myoglobuinuria 4. extrinsic toxins: contrast dye |
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General cause of postrenal acute kidney injury
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Obstruction of urine outflow at any point from ureter through urethra
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5 causes of intrinsic vascular dz in renal acute kidney injury
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1. vasculitic syndr
2. thrombotic microangiopathies 3. malig HTN 4. cortical necrosis (abruptio placentae) 5. atheroembolic dz |
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3 glomerular syndromes causing renal acute kidney injury
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1. nephritic
2. nephrotic 3. RPGN |
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3 types of tubulointerstitial dz causing renal acute kidney injury
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1. acute tubular necrosis
2. acute interstitial nephritis 3. intrinsic tubular obstruction |
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In Acute Tubular Necrosis, 3 theories for decreased GFR w/ intact tubules/vasculature
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1. filtrate leaks back through damaged epithelium
2. localized obstruction of tubules 3. damaged tubules signal for aff arteriole v'const |
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3 means of intrinsic tubular obstruction in renal acute kidney failure
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1. protein (BJ protein in multiple myeloma)
2. pigment (myoglobin from rhabdomyolysis) 3. crystals (tumor lysis syndr or drugs) |
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Distinguishing Acute vs chronic renal injury:
1. change in Cr from previous 2. small echogenic kidneys 3. NL hematocrit 4. signs of osteodystrophy 5. neuropathy |
1. change in Cr from previous = ACUTE
2. small echogenic kidneys = CHRONIC 3. NL hematocrit = ACUTE 4. signs of osteodystrophy = CHRONIC 5. neuropathy = CHRONIC |
