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A 47-year-old man with a history of sickle cell disease has had numerous hospitalizations requiring the placement of IV lines. The patient has poor peripheral venous access, and a catheter is placed in right subclavian vein. The patient subsequently develops right arm discomfort and swelling and a temperature of 40.1 C with chills. Multiple blood cultures are taken, and gram-positive cocci are isolated. The organism is catalase positive and grows on mannitol salt agar, but does not turn the agar yellow; the colonies are gamma-hemolytic on a sheep blood agar plate. Which of the following organisms is the most likely cause of this patient’s symptoms?

(A) Enterococcus faecalis

(B) Staphylococcus aureus

(C) Staphylococcus epidermidis

(D) Streptococcus agalactiae

(E) Streptococcus pyogenes

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(C) Staphylococcus epidermidis

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staph epidermidis
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streptococcus pyogenes
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anawer c
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