Bug of the day - bugguy19

[ArchivalUser]

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

[ArchivalUser]

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

[ArchivalUser]

HY facts __ s.aureus

Tricuspird valve endocarditis___ iv drug user
patient with chronic granulomatous ds are vulnerable
osteomylitis in kids

[ArchivalUser]

Thanks for the Bug of the Day!!!

[ArchivalUser]

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

[ArchivalUser]

thanks for the bug of the day...will follow..
wanna add 1 more ponit - S.saprophyticus- cystitis = honeymoon cystitis..

[ArchivalUser]

thank you

honeymoon cystitis = newly sexually active = teenager with cystitis = S.saprophytics

[ArchivalUser]

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

[ArchivalUser]

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

[ArchivalUser]

i posted S.pyogen with S. agalectiae together to remined u to use Bacitracin test for differential