yayurines
yayurines
Urine Bench Preparation
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yayurines · 4 years ago
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E. coli
Most frequent cause of UTIs; uncomplicated community-acquired
Enterobacteriaceae = facultative anaerobes; glucose fermenters; nitrate and catalase positive; oxidase negative
Flat dry pink/red with surrounding darker pink areas on MAC; shiny, opaque, off-white BH on BAP
Translucent pink to mauve on CHROMagar with spot indole positive to confirm
TSI: A/A and H2S negative
Urease negative
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yayurines · 4 years ago
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Resident Microbes of Urethra
CNS (except S. Saprophyticus)
Viridans and NH strep
Lactobacilli
Diphtheroids (Corynebacterium spp. except urealyticum)
Nonpathogenic Neisseria spp.
Anaerobic cocci 
Propionibacterium spp.
Anaerobic gram-negative bacilli
Commensal Mycobacterium spp.
Commensal Mycoplasma spp.
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