Crozer- bugs and drugs Flashcards
what are gram +, catalase +. cocci in clusters
staphylococcus aureus
DOC for staph?
alternatives
keflex or ancef
clinda, levaquin, vanco, azithro, dicloxacillin, nafcilllin
DOC mrsa?
alternatives
IV vanco, bactrim PO
synercid or linezolid
Topical DOC mrsa
bactroban
DOC for strep
ancef keflex
what are gram +, catalase neg cocci that are in pairs or chains
streptococcus
Strep in PCN allergy
clinda, levaquin, vanco
DOC enterococcus
alternatives
amoxicillin or vanco
augmentin, linezolid
Drug of choice for VRE
linezolid or synercid
DOC for diptheroids
vanco
short gram neg rod?
escherichia coli
DOC E. Coli
keflex or ancef
DOC proteus
keflex or ampicillin
small gram neg rod w pili and polar flagella
pseudomonas aeruginosa
DOC pseudomonas?
alternatives?
cipro
3rd gen cephalosporins, aztreonam, zosyn, timentin
how does pseudomonas typically present
blue gree purulence. grape odor
gram neg spirochete causes lyme disease?
borrelia burgdorferi
DOC for lyme disease
doxycyline or rocephin
DOC for bacteroides
augmentin, zosyn, unasyn, timentin
large, gram positive, anaerobic, racquet shaped rod that forms spores?
clostridium perfringens
DOC for clostridium
penicillin, imipenem, clinda, tetracyline
what are 2 soft tissue clinical manifestations caused by clostridium
anaerobic cellulitis and gas gangrene
why is gas gangrene a surgical emergency
rapidly progresses to shock and renal failure and is fatal in 30%
DOC for aeromanas
alternative?
cipro po/iv
bactrim
DOC for pseudomonas cepacia
bactrim
ceftazidime
DOC necrotizing fasciitis
primaxin
DOC superficial thrombophlebitis
timentin
DOC gonorrhea
ceftriaxone or PCN
DOC cutane3ous larva migrans
promethia under occlusion
what org may form gas in soft tissue
Gram positive – Clostridium perfringens, Staphylococcus, Streptococcus, Peptostreptococcus
Gram negative – Bacteroides, E. coli, Klebsiella, Serratia
What are some anaerobes
Gram positive – Actinomyces, Clostridium, Peptostreptococcus
Gram negative – Bacteroides, Fusobacterium
Doc diabetic w PCN allergy
clindamycin
DOC severe limb threatening infection
primaxin
what are most common organism of bite wounds
Human-eikenella corrodens
cat/dog- pasteurella multocida
gram neg associated w dog bites
DF2
DOC cat and dog bites
augmentin
most common organisms causing cellulitis
staph and strep
which type of strep causes impetigo cellulitis and erysipelas
group a strep
difference btwn cellulitis and erysipelas
Cellulitis – confined superficial infection
Erysipelas – superficial infection that extends into the lymphatics
most common org that causes acute hematogenous osteomyelitis
Staphylococcus aureus (adults), Gram negative rods (elderly)
what is most common org that causes osteo following puncture
pseudomonas aeruginosa
whats an anaerobic gram + filamentous bacteria
actinomyces
what org may be found in puncture wound in ocean
vibrio vulnificus
what type of bacteria is gonorrhea
gram neg diplococci
whats gonorrhea cultured on
chocolate agar
tx for gonorrhea
ceftriaxone
if patient is currently on an antibiotic, how long should it be stopped before taking a wound culture
48 hours