PREDICTIVE VALUES OF SPECIES IDENTIFICATIONS FROM THE VITEK GRAM-POSITIVE-IDENTIFICATION-CARD USING CLINICAL ISOLATES OF COAGULASE-NEGATIVESTAPHYLOCOCCI
Ja. Kellogg et al., PREDICTIVE VALUES OF SPECIES IDENTIFICATIONS FROM THE VITEK GRAM-POSITIVE-IDENTIFICATION-CARD USING CLINICAL ISOLATES OF COAGULASE-NEGATIVESTAPHYLOCOCCI, American journal of clinical pathology, 106(3), 1996, pp. 374-377
The Gram-Positive Identification Card (GPI, bioMerieux Vitek) was comp
ared to conventional tests for identification of 616 clinical isolates
of coagulase-negative staphylococci. All tests were inoculated with s
ubcultures from single isolated colonies, The predictive values of GPI
species' identifications (the number of the system's correct calls di
vided by tile total number of calls for each species) were 100% (12 of
12) for Staphylococcus capitis, 100% (79 of 79) for S saprophyticus,
98.4% (246 of 250) for S epidermidis and 96.0% (120 of 125) for S haem
olyticus, but only 64.5% (69 of 107) for the other species analyzed. W
hen tin infrequently encountered Staphylococcus species is named using
the GPI, the identification should he confirmed using additional test
s.