Question 23
What is the Causative Organism in the vignette discussed in question 22?
a) Salmonella typhi Muriam
b) Staphylococcus aureus
c) Streptococcus pyogenes
d) Streptococcus viridans
e) Staphylococcus epidermidis
f) Streptococcus Bovis
g) Mycobacterium TB
2 comments:
Answer: B
Staphylococcus aureus in the most likely cause of IE in an IV drug abuser.
Most common causes:
MCC of IE: S. Viridans
MCC of IE in IV abuser: S. Aureus
MCC of IE in patients with Colorectal Ca: S. Bovis
MCC of IE in patients with prostehetic devices: S. Epidermidis
i have a doubt even though staph aureus is the mcc of IE in IV drug abusers the course of fever for 7 days dosent correlate with the course of staph aureus.
cant this be staph epidermidis as this is also seen in IV drug abusers and has a less rapid course. ?
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