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
in early pylonephritis you have to avoid macrobin and fosfo because of …
low renal conc.
If issues of allergy, interaction, resistance, cost, compliance, what other abx can you prescribe in acute simple cystitis of non-pregnant pt?
Beta lactam: augmentin
fluoroquinolones: cipro, levaquin
What can you prescribe for acute simple cystitis in pregnant women?
augmentin, cefpodoxime, fosfomycin
What should you avoid in pregnant pts with acute simple cystitis?
fluoroquinolones
Men with acute simple cystitis can be prescribed the normal abx, but describe the duration of tx…
7 days (longer duration)
Which patient populations should receive the primary therapies for 1-2 weeks in acute simple cystitis?
comorbidities, immunocompromise, urologic abnormality
5 points of patient edu in acute simple cystitis
increase fluids void when need hygeine complete ABx ER precaution pylo
For whom are f/u urine cultures needed for acute simple cystitis if sxs resolve on abx?
pregnant women
An infection of the kidney is called…
acute pylonephritis
Ascent of bacteria up the ureters can lead to…
acute pylo
A sick appearing patient presents with the following hx:
- frequency
- urgency
- dysuria
- flank pain
- systemic sxs
- GI sxs
acute pylonephritis
A sick appearing patient presents with the following PE:
- fever
- tachy
- hypotension
- CVA tenderness
acute pylonephritis
What diagnostics should be ordered for acute pyelonephritis?
- UA
- Urine C and S
+/- GC/Chlamydia, CBC/BMP, Imaging
You receive the following results from UA and culture. What does this indicate?
(+) LE (+) Nitrites Pyuria (10+) Bacteriuria WBC casts
Acute Pyelonephritis
CBC and BMP are only necessary if a patient with acute pyelonephritis is hospitalized. What might they show?
left shift leukocytosis
BMP for renal fxn, hydration, lytes
The following presentations of acute pyelonephritis indicate what diagnostic may be necessary?
- severe illness
- sxs after 48-72 hours of abx
- suspicion for obstruction
- recurrent sxs w/in weeks of tx
Imaging:
CT A/P
Renal US
MRI
how long after starting tx should simple cystitis sxs be relieved?
48 hrs
Describe the tx of acute pyelonephritis for mild-moderate outpatient illness…
fluoroquinolones:
- cipro 500mg PO BID x 5-7
- Levofloxacin 750mg PO QD x 5-7 days
If FLQ prevalence in E. Coli > 10%, what can be an alternative tx of acute pyelonephritis?
Ceftriaxone 1g IV/IM + FLQ
If you know the pathogen is susceptible to TMP-SMZ, what therapy can be used?
Bactrim 160/800mg PO BID x 7-10 days
When must follow up occur in mild/moderate outpatient acute pyelonephritis?
48-72 hours
The following are indications for what intervention in the tx of acute pyelonephritis:
- hemodynamic instability
- persistant fever > 101
- persistent pain/debility
- suspected obstruction
- metabolic dysfunction
- NPO
- compliance issues
hospitalization
This condition is defined by…
bladder pain, pressure and discomfort for more than six weeks in absence of infx or other causes
-can be relieved with voiding, worse with filling
interstitial cystitis
What is the most important part of assessment for IC?
careful hx
duration, triggers, # of voids
The components to the physical exam for IC…
abd, pelvic (females), rectal (males)
What labs can help r/o other causes to lead you to IC? (5)
UA and Culture
Urine cytology if TOBB
STI testing
post-void residual volume
cystoscopy
What may be identified on cystoscopy to support dx of IC?
altered urothelium
- glomerulations
- hunner lesions
What is 1st line tx for IC?
supportive and behavioral modification
What is the 2nd line for IC?
amitryiptyline, elmiron, hydroxyzine PO
intravesical lido
PT
How long may it take for elmiron to start acting?
3-6 mo
Urinary urgency +/- incontinence with nocturia and frequency.
Caused by overactive detrusor
overactive bladder
The following are risk factors for what?
> 65 yo obesity parity prolapse DM neuro dz
OAB
The physical exam for OAB should target…
pelvic floor muscles, vaginal atrophy, pelvic masses
What labs may be helpful in OAB?
UA, culture
1st line tx for OAB is…
kegel, lifestyle mod, bladder training
2nd line meds for OAB…
antimuscarinics
beta 3 agonist
What is a caution for tx of OAB with antimuscarinics?
anticholinergic sfx