Enterococcus And Diptheria

Question 1

Gram stain and shape of enterococcus

Answer 1

Gram positive cocci in pairs or chains

Question 2

Source of enterococcus

Answer 2

Normal bowel flora, concerning if in blood bc

Question 3

Resistance difference between E.Faecalis and E.Faecium

Answer 3

E. Faecalis: Less resistant to vancomycin, PCN resistance is uncommon
E. Faecium: PCN, aminoglycoside, and Vanco resistance

Question 4

Treatment for Enterococcus infections

Answer 4

Ampicillin (if susceptible)
Vanco (if PCN resistance)

Question 5

VRE treatment

Answer 5

Daptomycin + ampicillin
OR
Linezolid

Question 6

Gram stain and shape of Corynebacterium Diptheriae

Answer 6

Gram positive bacillus, unencapsulated, nonmotile, nonspore forming

Question 7

Infections associated with Corynebacterium

Answer 7

Nasopharyngeal and skin infections
Toxigenic if strains can produce systemic toxicity, myocarditis, and polyneurophay
Non-toxigenic strains produce cutaneous infections

Question 8

Diagnosis of Corynebacterium Diptheriae

Answer 8

Clinical s/s plus lab confirmation must be reported to CDC

Question 9

Treatment for Corynebacterium Diptheriae

Answer 9

Droplet precautions until 3 consecutive negative cultures after completion of therapy
Diptheria antitoxin must be obtained from CDC
Procaine PCN G 600000u IM q12
PCN V 250mg po QID x14 days
Erythromycin 500mg IV q6 hours
Vaccination