10 results
Blood culture contaminants
Grouped by gram negative vs gram positive vs other as well as never/maybe/probably
Some additional
Blood culture contaminants ... Grouped by gram negative ... #Infections #Microbiology ... #Micro #Differential ... #contaminants
Streptocccus Pneumoniae
Microbiology: Gram Positive, Alpha-hemolytic, Catalase Negative
Epidemiology - 10% adult carriers:
 • Most common cause of:
Alpha-hemolytic, Catalase Negative ... osteomyelitis, peritonitis ... sinus • Sputum culture ... Specificity of 97%) Treatment ... diagnosis #management
CAPD-associated peritonitis (Continuous Ambulatory Peritoneal Dialysis) - 5 Things To Know
Diagnosis (Two of the following):
(1) Clinical
Positive effluent culture ... Microbiology: • ... diverticulitis) Treatment ... negative peritonitis ... #Diagnosis #Management
Bacteremia Quick Reference - Treatment Duration

Gram Negative Bacteremia:
 • Avoid: Aminoglycosides and tigecycline
 • Catheters should
Quick Reference - Treatment ... are negative ... C and Group G strep ... #Bacteremia #Treatment ... #Management #Duration
Group A Strep Pharyngitis, also known as  Strep Throat. 

In addition to symptomatic presentation, a
If positive, no culture ... throat swab is negative ... have a follow-up culture ... #StrepThroat #Management ... #Treatment
Psittacosis 
Pathogen: Chlamydia psittaci - obligate intracellular gram negative
Transmission:
 • Birds are the primary reservoir
 •
intracellular gram negative ... test • PCR • Culture ... first line of treatment ... Chlamydia #psittaci #microbiology ... #diagnosis #management
Spontaneous Bacterial Peritonitis
DIAGNOSTICS
Paracentesis: 
 • Calculate absolute PMN count (total WBC x PMN %)
 • Correct
Spontaneous Bacterial Peritonitis ... from secondary peritonitis ... dL, LDH > ULN Culture-negative ... SBP #diagnosis #management ... #prophylaxis #treatment
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
Diagnosis and Management ... fastidious gram-negative ... Serology (preferred), Culture ... & GS, PCR Treatment ... #microbiology
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
infections • Gram-negative ... microorganism (Culture ... Capnocytophaga #canimorsus #microbiology ... infectiousdiseases #diagnosis #management ... #treatment
Aeromonas spp - Diagnosis and Management Summary
Aeromonas spp: Gram-negative Rods, oxidase positive and glucose fermenter.
Virulence: Toxin
Diagnosis and Management ... Aeromonas spp: Gram-negative ... wound or blood cultures ... Treatment: • ... #microbiology #