FA - Micro - Clinical Bacteriology (2016) Flashcards
S.epi - Infects …?
- Prosthetic devices (eg hip implant, heart valve).
2. IV catheters by producing adherent biofilms.
S.saprophyticus - General features:
- Catalase (+).
- Coagulase (-).
- Urease (+).
NOVOBIOCIN RESISTANT.
S.sapro is normal flora of …?
Female genital tract + Perineum.
S.pyogenes (GAS) - Pyrrolidonyll arylamidase (PYR)?
POSITIVE.
S.agalactiae (GBS) - Pyrrolidonyl arylamidase?
NEGATIVE.
S.bovis - Colonize the …?
GUT.
S.gallolyticus?
S.bovis biotype 1.
S.gallolyticus - Cause what …?
BACTEREMIA + SUBACUTE endocarditis.
==> Associated with COLON CANCER.
Enterococci - PYR?
POSITIVE.
C.tetani - Tx:
- Anti-toxin +/- vaccine booster.
- Diazepam (for muscle spasms).
- Wound debridement.
C.botolinum - Local botox injections used to …?
Treat:
- Focal dystonia.
- Achalasia.
- Muscle spasms.
- -> Also used for cosmetic reduction of facial wrinkles.
C.perfringens - Spores can survive in …?
UNDERCOOKED FOOD.
C.perfringens - When ingested, bacteria release …?
Heat-labile enterotoxin –> Food poisoning.
C.difficile - For recurrent cases?
- Consider prior regimen.
- FIDAXOMICIN.
- Fecal microbiota transplant.
H2S production on TSI agar?
Salmonella + Proteus.
H2S production on TSI agar?
Shigella + Yersinia.
H.influenza - Culture on …?
Chocolatee agar –> Contains factors V (NAD+) and X (hematin) for growth.
H.influenza - Can also be grown with …?
S.aureus, which provides factor V through the hemolysis of RBCs.