Renal: UTI, Cystitis, Pylo Flashcards
Pylo or GN?
WBC casts
pylo
Do negative LE/nitrite r/o UTI in symptomatic patients?
no
what are 2 reasons for false negative for nitrite on urine dipstick?
non-nitrate redox bacteria
frequent urination
what 2 things can cause false positive LE on urine dipstick>
vaginal contamination
trichomonas
Pylonephritis is a UTI of which tract?
upper tract
Cystitis, prostatitis, urethritis are UTIs of..
lower tract
Men or women?
More common (50x) cystitis, pylo
women
Men are prone to which UTIs?
urethritis
prostatitis
Ascending bacterial infx is responsible for ___% of UTI
95%
most common pathogen responsible for UTI?
E. Coli (75-95%)
The following are causes of what UTI risk factor?
- urine outflow obstruction
- inadequate fluid intake
- neurogenic bladder
reduced flow
The following are causes of what UTI risk factor?
- sexual activity
- spermicide use
- fecal incontinence
promote colonization
The following are causes of what UTI risk factor?
catheterization
urinary incontinenze
fecal incontinence
facilitate ascent
What type of UTI?
- confined to bladder
- non-pregnant
- no s/s of upper tract or systemic infx
acute simple cystitis
What type of UTI?
-Acute UTI + extension beyond badder
- fever, chills
- signs of systemic illness
- flank pain
- CVA tenderness
- Pelvic/perineal pain in men
acute complicated UTI
What are 5 special populations at risk for complicated UTI?
pregnant women
men
immunocompromised
urologic abnormalities
comorbid contitions
A patient presents with:
dysuria
frequency
urgency
+/- hematuria, suprapubic discomfort
What are you concerned for, what needs to be ruled out?
concerned for acute simple cystitis
r/o pylo
flank pain, hesitancy, pruritus, perineal pain, NV, fever
Who can have an atypical presentation in acute simple cystitis?
elderly
PE for acute simple cystitis usually reveals…
grossly normal
You suspect acute simple cystitis so you order a UA. What findings on dipstick and microscopy might confirm your Dx?
dipstick: (+) LE and Nitrites
micro: pyuria, bacteriuria
the following presentations warrant ordering what test?
- atypical presentation, uncertain dx
- complicated UTI (flank pain, etc)
- unresolving sxs
- resistance
- special populations
urine culture
What number of CFU on urine culture is diagnostic for acute simple cystitis?
10^3 +
10^2 in women with typical sxs
What OTC analgesic can be recommended for acute simple cystitis tx? How long of course?
Pyridium (AZO) 200 mg TID PRN x 2 days
You’ve diagnosed acute simple cystitis in a non-pregnant individual. What are the two options for abx?
macrobid 100mg PO BID x 5 days
Bactrim 160/800mg PO BID x 3 days
fosfomycin 3gm mixed in water PO single dose