Skin infections Flashcards
NSTI MC bugs
polymicrobial or Group A strep
Group A strep bug? tx?
gram positive cocci chains/Pen G and clinda
animla induced NSTI bugs?
pasturella, capnocytophagia- B lactam
Fresh water NSTI bug? tx?
aeromonas- Bactrim or flq
Salt water NSTI bug? tx?
vibrio- 3rd gen cephalopsporin or tetracycline
Trauma IVDA bug? tx?
clostridium- PCN and clinda
NSTI vs compartment syndrome presentation?
NSTI with red very painful/compartment pallor numbness
MCC toxic shock syndrome?
GAS and S aureus
toxic shock toxin?
exotoxin
Tularemia presentation? tx?
red spot ulceration/aminoglycoside
Plague presentation? tx?
buboes, gangrene/ streptomycin, tetracycline
anthrax tx?
doxy or cipro
Brown Recluse bite, bug?
MRSA
TSS tx?
clindamycin plus IVIG (lowers mortality)
staph toxin in TSS?
TSST-1 exotoxin, massive release of cytokine
strep toxin in TSS?
toxin found on surface of bacterium
bad complciation of sphenoid sinusitis?
sinus thrombosis
MC bug for sinus thrombosis from sinusitis?
S aureus
characteristic findings of group A strep pharyngitis caused by strep pyogenes?
temp, cervical lymphadenopathy, exudative tonsils
virulence factor for S pyogenes (GAS)
strains lacking the M protein are less virulent
type 1 nec fasciitis cause?
polymicrobial
type 2 nec fasc cause?
GAS S pyo
type 3 nec fasc cause?
gram negative
type 4 nec fasc cause?
seen in immunocompromised caused by fungal usually candida species
tratment for pseudomonas septic joint?
penicillin plus aminoglycoside
which coag negative staph is more like s aureus in terms of its infectivity?
S lugadensis
tx for coag neg staph line infection?
catheter removal and the abx for 5-7d
