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micro q 1^^ - mamamia
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06-13-2005, 01:15 AM
One of three blod cultue bottles draw from a patient with unexplaind fevers reveals gram-positive cocci growing in clusters.Which ot the folowing tests would be most useful in determination whether this organism is a part of the normal skin flora?
1/bacitracin resistance 2/catalase 3/coagulase 4/novobiocin resistence 5/optochin resistens
06-13-2005, 01:25 AM
well bacitracin senstivity is also used i m confused what is the ans
06-13-2005, 01:27 AM
fine i got it its 3 its is negative for commensal
06-13-2005, 03:36 AM
gram + cocci in clusters: staph. of all the staph ,i think, s.epidermidis is the normal skin flora-right? and s.epi is novobiocin sensitive,coagulase neg. & non hemolytic-right? so of all the choices given i go for 4. let me know the answer pleez.
06-13-2005, 04:23 AM
Staph.aureus is common pathogen that should NOT be considered normal skin flora.
S.aureus is the only coagulase positive staphylococcus. answer 3 |
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