Stones UTIs Flashcards
kidney stone risk factors
family hx (3x), hyperparathyroidism, RTA, diabetes, gout, dehydration
most common kidney stone is _____ and it is usually due to _____
calcium oxalate stone; idiopathic hypercalciuria
calcium phosphate stones form in ___ urine pH and are assoc with ____
high; UTIs
struvite (infection) stones are associated with?
urease producting bacteria (like proteus) (chronic catheters, urinary diversion, obstruction)
prevention of struvite stones
long-term ABX and/or urease inhibitor (makes you SICK)
risk factors for uric acid stone
dehydration, gout, high protein diet
tx of uric acid stone
fluid intake + urine alkalinization (bc they occur in low urine pH)
cystine stones occur due to? and are tx with?
AR genetic defect in dibasic AA transport; fluid + urine alkalinization + chelating agents
sx of kidney stone
acute colicky pain (CVA tenderness), LUTS, hematuria, N/V
evaluation of suspected kidney stone
urinalysis + noncontrast CT scan of abdomen/pelvis
severe stone presentation requires urgent decompression with?
ureteral stent or percutanous nephrostomy
this medication can help aid passage of a kidney stone
alpha blocker (tamsulosin)
basic labs that should be collected after someone has a kidney stone
serum calcium, uric acid, bicarb, creatinine
dietary px of kidney stone
increased fluid, low salt, normal calcium, low oxalate, low purine (meat), increased citrate
medical tx of hypercalciuria
thiazide diuretic
medical tx of hyperuricemia
allopurinol
medical tx of cystinuria
thiols (chelating agents)
leukocyte esterase is a measure of ___ in urine, while nitrites measure ___ in urine
WBCs; bacteria
majority of UTIs caused by gram ___ bacteria, especially ____
negative; E coli
tx tier of uncomplicated cystitis
1st: nitrofurantoin x5d OR bactrim x3d, 2nd: cipro x3d, 3rd: augmentin x7d
tx of complicated cystitis
urine culture! + empiric ABX 7-14d of fluoroquinolone
ABX course for acute vs chronic bacterial prostatitis
1 month vs 2 months of fluoroquinolone or bactrim
sx of pyelonephritis
flank pain, fever/chills, N/V, cystitis sx
pyelo sx are atypical in?
elderly and diabetics
fever should go away within ___ hours of pyelonephritis tx
72 (if it doesn’t, imaging needed to rule out abscess)
tx of pyelonephritis
fluoroquinolone or bactrim for outpatient; fluoro or amp-gent for inpatient
this cystitis tx should NOT be given to tx pyelonephritis
nitrofurantoin