TABLE 5.
Bottles flagged negative by the instrument but for which microorganisms were detected by blind terminal subculture
| Microorganism | No. of bottles testing negative by each system and medium from which the indicated microorganism was detected by subculture:
|
|||
|---|---|---|---|---|
| VTI
|
3D
|
|||
| REDOX 1 | REDOX 2 | SA | SN | |
| Gram-positive cocci | ||||
| Staphylococcus aureus | 1 | 7 | 2 | 1 |
| Coagulase-negative staphylococci | 0 | 6 | 0 | 1 |
| Enterococcus faecalis | 0 | 1 | 0 | 0 |
| Enterococcus faecium | 0 | 0 | 1 | 1 |
| Gram-negative bacilli | ||||
| Enterobacter cloacae | 0 | 0 | 1 | 0 |
| Klebsiella pneumoniae | 0 | 1 | 0 | 0 |
| Pseudomonas aeruginosa | 0 | 0 | 0 | 4 |
| Stenotrophomonas maltophilia | 1 | 7 | 0 | 8 |
| Anaerobic bacteria (Bacteroides fragilis) | 1 | 0 | 0 | 0 |
| Fungi | ||||
| Candida albicans | 0 | 0 | 0 | 1 |
| Candida glabrata | 0 | 0 | 0 | 1 |
| Candida parapsilosis | 0 | 2 | 0 | 3 |
| Candida tropicalis | 0 | 0 | 0 | 2 |
| Total by system and mediuma | 3 | 24 | 4 | 22 |
| Total by systemb | 1 | 4 | 3 | 2 |
a
Number of false-negative bottles for which the organism was detected in a companion bottle by either system.
b
Number of false-negative bottles for which the organism was detected in a companion bottle only by the other system.