GERI Flashcards
UTI is an umbrella term encompassing what dzs?
- Asymp Bacteriuria
- cystitis
- Prostatitis
- Pyelonephritis
Most common infectious illness in adults > 65 y/o
UTI
most common pathogens causing UTI
enteric gram-negative rods
- E.coli (75-90%)
- Staph saprophyticus(5-15%),
- Klebsiella
- Proteus
- Enterococcus
- Citrobacter spp. (5-10%)
discuss dx differences b/w Typical vs Atypical presentations of UTI
Typical sx (dysuria, new frequency, etc.): = clinical diagnosis
- UA/culture may be helpful
Atypical sx or sx of upper urinary tract involvement:
- UA w/ Cx with sensitivity
- Remember - + leukocyte esterase or nitrites on dipstick does not rule in a UTI(low specificity),
- useful as a screening tool to rule out UTI
T/F
Presence of bacteria on culture does not always equate to a UTI
what is seen on positive UA for UTI
TRUE
Presence of bacteria on culture does not always equate to a UTI
- Leukocyte esterase and nitrites(urine dipstick) can be used as a screening tool, but further evaluation needed
UTI Tx
Inpatient
Critical illness
Treatment in MDR Outpatients
Inpatient
- Cipro or Ceftriaxone
- Followed by TMX-SMX or Augmentin/Cefpodoxime
Critical illness
- Imipenem or Meropenem PLUS Vanco or Linezolid
Treatment in MDR Outpatients
- Ertapenem Followed by Cipro or Levaquin
Define Asymptomatic Bacteriuria
isolation of bacteria in an appropriately collected urine specimen from an individual without symptoms of urinary tract
tx of Asymptomatic Bacteriuria
No Tx if not symptomatic!!!
Defer abx tx for 1 week with follow-up(as long as patient not ill)
Women - second specimen should be obtained (within 2 weeks) to confirm growth of the same organism
If an asymptomatic women has positove bacteria on urine cx
what should be the next step in tx?
second specimen should be obtained (within 2 weeks) to confirm growth of the same organism
Select individuals to treat w/ Asymptomatic Bacteriuria
Pregnant women – adverse outcomes associated with AB
Urologic Intervention – associated with infectious outcomes
Renal transplant patients
what is the Rome IV Criteria used to help dx?
define Rome IV Criteria
Constipation / fecal impaction
Rome IV Criteria –> Any 2 of the features:
- Straining
- Lumpy hard stools
- Sensation of incomplete evacuation
- Use of digital maneuvers
- Sensation of anorectal obstruction or blockage with 25% of bowel movements
- ↓ in stool frequency
imaging studies to consider for Constipation / Fecal Impaction
Sigmoidoscopy/Colonoscopy - Strongly consider in
- alarm symptoms
- or if most recent colonoscopy >10 years ago
Radiopaque marker study
Motility Studies - anal sphincter function at rest and during defecatory maneuvers as well as reflex activation of the pelvic floor
Defecography
Balloon Expulsion Test
Tx for Constipation / Fecal Impaction
Lifestyle and dietary modification
- ↑ fluid intake , exercise & Fiber (20-25 g/day)
Laxatives
- Bulk forming (Metamucil, Citrucel, FiberCon, Benefiber)
- Osmotic (Miralax, Lactulose, Sorbitol)
- Stimulant (Senna or Bisacodyl)
Stool softeners
- Glycerin and bisacodyl suppositories
- Enemas (tap water or soapsuds)
Colonic secretagogues
- Lubiprostone (Amitiza) –> Chloride channels – secreting chloride and water into the lumen
- Linaclotide(Linzess) –> Stimulates intestinal fluid secretion and transit
Opioid Antagonists
- Methylnatrexone SubQ
- Naloxegol(Movantik)
list tx for Constipation / Fecal Impaction
Colonic secretagogues
Opioid Antagonists
Colonic secretagogues
- Lubiprostone (Amitiza) –> Chloride channels – secreting chloride and water into the lumen
- Linaclotide(Linzess) –> Stimulates intestinal fluid secretion and transit
Opioid Antagonists
- Methylnatrexone SubQ
- Naloxegol(Movantik)
Fecal Impaction Management
- Disimpaction –> In the absence of perforation and if safe to do
- Warm water enema –> if above fails
- Once Disimpacted –> begin bowel regimen w/ PO polyethylene glycol (MiralaX)
Define watery vs inflammatory diarrhea
list common pathogens responsible
Watery Diarrhea – usually large volume, abdominal bloating, none or minimal bleeding
- Norovirus most common ID’d cause*
- C. diff (Clostridoides)
- C. perfringens
- Giardia and Cryptosporidium
Inflammatory Diarrhea – usually involves fevers, significant abdominal pain, bloody or mucoid diarrhea
- Salmonella(2nd most common cause*),
- Campylobacter, Shigella, Yersinia
- EHEC/STEC
differentiate b/w acute and chronic diarrhea
Acute - <14 days
Chronic - >14 days
Dx of acute diarrhea
Stool cultures (usually includes E.coli, Salmonella, Campylobacter)
_endoscopic evaluatio_n –> if concern for IBD, no clinical improvement or worsening (rare)
you should ALWAYS wait for stool cx in diarrhea pt before initiating abx bc???
Risk of hemolytic anemia syndrome & C. Diff
- E.coli – NO TX (risk of HUS!!!)
- Campylobacter – azithromycin
- Salmonella – ciprofloxacin or Azithromycin
ABx tx of diarrhea
E.coli –
Campylobacter –
Salmonella –
E.coli – NO TX (risk of HUS!!!)
Campylobacter – azithromycin (inflam)
Salmonella – ciprofloxacin or Azithromycin (inflam)
define Hemolytic Uremic Syndrome(HUS)
timeline?
dx triad?
complication of E.coli infection associated with antibiotic use
- Nonimmune-mediated hemolytic anemia
- Thrombocytopenia
- Thrombotic microangiopathy
- Acute kidney injury
occurs b/w 5-13 days of diarrhea
Diagnostic Triad:
- Hemolytic anemia (<30%)
- Thrombocytopenia (<150,000)
- ↑ Creatinine than ULN for pt age
Dx of chronic diarrhea
Stool cultures, Cdiff, Ova and Parasite
Check Electrolytes, celiac serologies, TSH
R/O lactose intolerance – Lactose breath hydrogen test (↑20 is positive)
Lactulose breath test - SIBO (↑20 is positive)
Fecal elastase (Pancreatic insufficiency)
Review Medications
Flex sig/colonoscopy - (if – cx)
Lactose / Lactulose breath test is used to dx what dz?
what value is +??
Chronic diarrhea
lactulose -SIBO (↑20 is positive)
in chronic diarrhea Flex sig/colonoscopy is indicated when?
negative cx
