Renal Flashcards
What is the most common cause of intrinsic renal failure? What are the four major causes of this?
- ATN
- ischemic or nephrotoxins
- metabolic (hypercalcemia)
- Crystals
What will be present in the UA with glomerulonephritis?
RBC casts
True or false: poststreptococcal glomerulonephritis is prevented if strep is treated
False
True or false: poststreptococcal glomerulonephritis cannot be causes by skin infections with strep
False
What problem are patients with nephrotic syndrome at increased risk of developing?
thrombosis
What are the three major drug classes that cause acute interstitial nephritis?
PCNs
Diuretics
NSAIDs
What are the systemic s/sx of acute interstitial glomerulonephritis?
Rash, fever
Eosinophilia
What would you see on a UA with prerenal disease?
Hyaline casts, high SG
What will you see on a UA with intrinsic/renal disease?
Granular casts
What is the FeNa for prerenal and renal causes of AKI?
Prerenal = less than 1% Renal = more than 1%
What is the urine sodium for prerenal vs renal causes of AKI?
Less than 20 for prerenal
More than 40 for renal causes
What might RBCs on a UA indicate in terms of renal pathology?
Glomerulonephritis or vasculitis
What might WBC casts on a UA indicate in terms of renal pathology?
Pyelonephritis or AIN
What might granular casts or renal tubular epithelial cells on a UA indicate in terms of renal pathology?
ATN
What might hyaline casts on a UA indicate in terms of renal pathology?
Pre or post renal causes of AKI