27 results
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
Diagnosis: • Stool culture ... available • Blood culture ... Monocytogenes #diagnosis #management ... infectiousdiseases #treatment #microbiology
Plate Colony Color Identification Algorithm
 - Pink Colonies
 - Turquoise Blue Colonies
 - Blue-Purple Colonies
 -
Plate Colony Color Identification ... Colony #Color #Identification ... Algorithm #diagnosis #microbiology ... #culture #colonies
Listeriosis Summary - Listeria Monocytogenes
Pathogen: Listeria Monocytogenes - Gram-positive rod, Aerobic, facultative anaerobe, motile, beta-hemolytic, Non-spore-forming
Risk
Diagnosis: • Stool culture ... available • Blood culture ... Monocytogenes #diagnosis #management ... infectiousdiseases #treatment #microbiology
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Streptocccus Pneumoniae Microbiology ... sinus • Sputum culture ... Pneumoniae #strep #microbiology ... #diagnosis #management
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
Diarrhea Workup and Management ... Patients First Tier Microbiologic-Testing ... Bacterial culture ... pathogens First Tier Microbiologic-Testing ... Diarrhea #Workup #Management
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
test • PCR • Culture ... Chlamydia #psittaci #microbiology ... #diagnosis #management
Candidates for Medical Treatment of Ectopic Pregnancy with Methotrexate 
 - Hemodynamically stable 
 - No
evidence of ectopic rupture ... cardiac activity on ultrasound ... Ectopic #Pregnancy #Management
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
Diagnosis and Management ... Serology (preferred), Culture ... tularensis #diagnosis #management ... infectiousdiseases #microbiology
Emphysematous Cystitis
Epidemiology:
 • Usually middle-aged diabetic women
 • Other RF: neurogenic bladder, urinary tract outlet obstruction,
KUB or abdominal ultrasound ... • UA and Urine cultures ... also important Management ... may narrow per culture ... Cystitis #diagnosis #management
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... 90% of IE cases Culture ... • Blood cultures ... Endocarditis #diagnosis #management