Renal/Uro Flashcards
Most common UTI pathogen?
E.Coli
Why are women more likely to get UTIs over Men?
Men have longer urethra (less likely to get them unless BPH present)
A positive Urine culture would should what?
WBCs/leukocyte esterase
**Nitrates typically indicated bacteria is gram neg rods (E.Coli)
CFU amount that indicates a positive UA (C&S)
> 100k CFU (colony forming units)
how do we collect a UA in children who are not toilet trained?
Catheterization
**Urine culture results will be altered if patient already taking ABX
remember C&S before ABX!
ABX of choice for UTI
AMOXICILLIN - not used as often d/t resistance, safe in pregnancy
Nitrofurantoin - only for uncomplicated cystitis ***do not use in 3rd trimester!
TMP-SMX (Bactrim) —> NOT used in pregnancy (sulfa)
Fosfomycin - 1x dose
complicated UTI / not preggers ABX
ciprofloxacin
levofloxacin
*** DONT USE fluroquinolones in pregnancy
general rule for treating uncomplicated UTI vs complicated
length of time
uncomplicated = 3-5 days
complicated = 10-14 days
**all men/ children always get this since they are always considered complicated
UTI tx in pregnancy
PCN (amoxicillin)
Cephalosporin
nitrofurantoin (up to 37 weeks)
10-14 days!
what abx classes do you avoid in pregnancy when treating a UTI?
Fluroquinolones & Sulfa drugs!
pt with pyelonephritis has not improved after 48-72 hours on appropriate abx… what should next steps be? `
Renal ultrasound or CT scan
Tx for pyelonephritis
complicated —>
Fluroquinolones = Ciprofloxacin or Levofloxacin
Bactrim
What are casts
mucoprotein formed in the renal tubules
RBC cast = contains trapped RBCs
**Indicates glomerular injury!
(like a cast that shows the RBCs/inside of kidney
what is urolithiasis?
bladder stone