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       Medical Microbiology (non-STD UTI)

                ²      Uncomplicated or Community Acquired

§         Gram positive

·         Staph. saprophyticus10% (coag negative)

·         Enterococcus faecalis 3%

·         Staph. epidermidis usually a contaminant

§         Gram negative

·         Escherichia coli 75-80%

·         Klebsiella pneumoniae 4%

·         Proteus mirabilis 3%

·         Pseudomonas aeruginosa 3%

²      Complicated or Hospital/Institution Acquired, Cath pt’s

§         More likely to be resistant

§         Gram positive

·         Staph aureus (coag positive) 8%

·         Staph epidermidis (coag negative) 8%

·         E. faecalis 18%

§         Gram negative

·         Klebsiella sp.  20%

·         Proteus mirabilis 15%

·         E. coli 20%

·         Pseudomonas aeruginosa 25%

·         Enterobacteriaceae = E. coli, Proteus, Enterobacter cloacae, Serratia marcescens, Providencia, Citrobacter, Morganella, Salmonella, Shigella, Yersinia

§         Fungal

·         Candida albicans, glabrata, krusei

·         Opportunistic, pseudohyphae under microscope

Uro-sepsis

Caused by E. faecalis, VRE, enterobacteriaceae, P. aeruginosa...

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