13 results
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup ... Patients First Tier Microbiologic-Testing ... CMV qPCR (Serum/Blood ... pathogens First Tier Microbiologic-Testing ... above testing negative
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... pain, hemoptysis, diarrhea ... danger of aerosol) Treatment ... first line of treatment ... Chlamydia #psittaci #microbiology
Leptospirosis
Pathogen: Leptospira (interrogans, kirschneri, noguchii)
Risk Factors:
 • Occupational exposure - Farmers, ranchers, trappers, veterinarians
 • Recreational
, vomiting and diarrhea ... manifestations • MAT microscopic ... Leptospirosis #Leptospira #microbiology ... #diagnosis #treatment
Acinetobacter baumanii on culture and microscopy
 - MacConkey agar - Lactose Negative
 - gram negative (often
on culture and microscopy ... agar - Lactose Negative ... - gram negative ... violet esp. from blood ... #microbiology #
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
on Culture and Blood ... immunocompromised pts From blood ... anaerobe; narrow Gram negative ... Smear #clinical #microscopy ... #microbiology
Cyclosporiasis - Diagnosis and Management Summary
Pathogen: 
 • Cyclospora cayetanensis
 • Foodborne, waterbone, and soil-transmitted.
 •
cramping, Watery diarrhea ... Established via stool microscopy ... Treatment: • TMP-SMX-DS ... diagnosis #management #treatment ... #microbiology #
Aeromonas spp - Diagnosis and Management Summary
Aeromonas spp: Gram-negative Rods, oxidase positive and glucose fermenter.
Virulence: Toxin
Aeromonas spp: Gram-negative ... Presentations: • Diarrhea ... Identified in wound or blood ... cultures Treatment ... Diagnosis #Management #microbiology
Solid Organ Transplant - Diarrhea - Diagnostic and Workup Algorithm
1st Tier Microbiologic Testing: CDiff (stool), CMV
Organ Transplant - Diarrhea ... Algorithm 1st Tier Microbiologic ... qPCR/NAT (serum/blood ... overgrowth If above negative ... malabsorption #Diarrhea
C.diff - Clostridioides Difficile Infection (CDI) - Diagnosis and Management - GrepMed Handbook

Clinical Presentation + Progression:
ABx) → Acute Diarrhea ... (>3 BM/d) ± blood ... Perforation) Pathophysiology ... despite appropriate treatment ... IDSA 2021 CDI Treatment
HIV-Associated Neurocognitive Disorder (HAND)

Definition:
HIV-Associated Neurocognitive disorders categories:
• Asymptomatic neurocognitive impairment
• Mild neurocognitive impairment
• HIV dementia

Pathophysiology:
HIV frequently
HIV dementia Pathophysiology ... integrity of the blood-brain ... sequences with relative ... Treatment: • HAART ... treatment • Cognitive