A 32 year old female complains to her family physician of coughing for 2 weeks d

Question

A 32 year old female complains to her family physician of coughing for 2 weeks duration. A sputum is submitted within 2 hours of collection and the stain shows many polymorphonuclear leukocytes, rare epithelial cells, and rare gram positive cocci in pairs. The culture grows rare gram positive cocci in pairs on both sheep blood agar and chocolate agar and growth is negative on MacConkey agar. On blood agar, hemolysis is gamma and colonies appear off-white, small, and round. This organism identifies as coagulase negative Staphylocci and is insignificant. What could explain this patient having symptoms and yet the slide and culture do not provide identification of a significant organism? What possible identification(s) might be provided by molecular testing? What disease might this person have and caused by what organism?

Explanation / Answer

1, What could explain this patient having symptoms and yet the slide culture do not provide identification of a significant organism?

2, What possible identifications might be provided by molecular testing?

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