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hi, i am the Bug Guy , My exam in end on November, am gonna post a Bug basic fact and buzz word every day for 3 month (up to my exam day Nov 25th) if you follow me this will be your daily bug flash card .
best of luck
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Staph. Aureus
cocci
gram +
catalase+
coagulase +
B hemolytic
ferment mannitol
salt tolernt
yellow colonies
infective endocarditis
abscesses
tss
osteomylitis
suppurative lesions
pencillinase resistant penicillin(nafcillin)
MRSR _VANCOMYCIN
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HY facts __ s.aureus
Tricuspird valve endocarditis___ iv drug user
patient with chronic granulomatous ds are vulnerable
osteomylitis in kids
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Thanks for the Bug of the Day!!!
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coagulase -ve staph
1/ staphylococcus epidermidis*********
gram +ve cocci
catalase +ve
coagulase -ve
Novobiocin senstive
endocarditis in Iv user
catheter and prosthetic device infection
ttt by vancomycin
2/staphylococcus saprophytics************
gram +ve cocci
catalase +ve
coagulase -ve
Novobiocin Resistant
UTI in newly sexually active female
ttt by TMP-SMX
*****************************************************************************
HY
1/when u see endocarditis in prosthetic heart valve think
S.epidermidis with in 60 days of valve replacment
strep. viridance after 60 days of replacment
2/ cystitis in sexually active female think
E.coli
S.saprophytics
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thanks for the bug of the day...will follow..
wanna add 1 more ponit - S.saprophyticus- cystitis = honeymoon cystitis..
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STREPTOCOOCI
1/ S.pyogenes
Gram +ve
catalases -ve
B-hemolytics
Bacitracin senstive
toxin mediated________ pharyngitis,skin inf,scarlet fever,toxic shock syndrome
antibodies mediated ____________RF, acute post streptococa lglomerulonephrits
ttt____pencillin G,
If resistant use pinicillinase resistant peniciln (nafcicllin)
if allergic use erythromycin
if invasive use clindamycin
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2/ S. Agalactice
same as S.pyogen BUT Bacitracin resistant
Gram +ve
catalases -ve
B-hemolytics
Bacitracin RESISTANT
Neonatal infections __________ neonatal meningitis,pnumonia, sepsis
elderly infections >65 esp those with diabetes or neurological ds (immuno _ve)
ttt________-same as S.pyogen +aminoglycoside OR cephalosporin
ampicillin prevention in pregnant female tested +ve
***********************************
HY
most common causes of neonatal meningits are
1/s.agalctia
2/E.coli
3/ listreia
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i posted S.pyogen with S. agalectiae together to remined u to use Bacitracin test for differential