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CoNS

QuestionAnswer
When CoNS is inoculated onto mannitol salt agar, what reaction and color change occurs? CoNS ferments glucose ONLY (not mannitol) and thus the colonies are turned pink.
When is CoNS speciated in the lab? When it is recovered from sterile body fluids or from UTI isolates.
How can you differentiate a CoNS from a Strep species? By performing a catalase test
How can you differentiate a CoNS from S. aureus? What would this result look like? As the name implies, a coagulase test. It will not form a clot in a coagulase tube.
What is the main pathogen of concern in the CoNS category? What kinds of infections can it cause? Staph epidermidis - Sub-acute bacterial endocarditis, UTIs, prosthesis infections, osteomyelitis
Created by: laceymaej