Renal: 12.5: UTIs 12.6: Nephrolithiasis Flashcards
(15 cards)
What is pyuria?
pus in the urine
What are the dipstick findings in cystitis?
positive leukocyte esterase and nitrites
What are the UA findings in cystitis?
cloudy urine w/ >10 WBCs/high powered field
What is the culture finding in cystitis?
> 100,000 colony forming units
What bug creates an alkaline urine with an ammonia scent in cystitis?
Proteus mirabilis
What is sterile pyuria?
pyuria with a negative urine culture –> suggests urethritis
What causes sterile pyuria aka urethritis?
Neisseria or Chlamydia
What are the classic path. findings of chronic pyelo?
interstitial fibrosis with cortical scarring and blunted calyces; thyroid-looking tubules with eos
What is the most common type of kidney stone?
calcium oxalate/phosphate
What kind of kidney stones can be seen in Crohns disease?
calcium oxalate/phosphate
What kind of stone is created by urease-positive organisms (ie Proteus or Klebsiella)?
ammonium magnesium phosphate (staghorn calculus)
What is the most common type of kidney stone seen in pts with gout?
a uric acid stone
Which kidney stone is radiolucent?
uric acid stones
What kind of kidney stones are seen in cystinuria?
cysteine stones
Name 2 kidney stones that can cause staghorn calculi.
adults = ammonium magnesium phosphate children = cysteine stones
