A 34-year-old prostitute with a history of long-term intravenous drug use is admitted with a 48-h history of pain in her left arm.

asked 2017-05-02 05:38:44 -0500

Aefya Droalia gravatar image

updated 2017-05-02 05:40:05 -0500

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Physical examination is remarkable for crepitus surrounding needle track marks in the antecubital space with a serous exudate. The plain x-ray of the arm is shown below. Which of the following organisms is most likely to be responsible for this condition?

image description

a. Anaerobic streptococcus

b. Staphylococcus aureus

c. Pseudomonas aeruginosa

d. Clostridium perfringens

e. Escherichia coli

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D. Clostridium

Rittu gravatar imageRittu ( 2017-11-07 04:04:28 -0500 )edit