TABLE 3.
Effect of antibiotic therapy on comparative yields of clinically significant monomicrobial isolates from Pedi-BacT and BacT/Alert PF bottles at CMC and CLS
| Organism group | No. of organisms recovered
|
|||||
|---|---|---|---|---|---|---|
| Patients receiving antimicrobial therapy
|
Patients not receiving antimicrobial therapy
|
|||||
| BacT/Alert PF and Pedi-BacT | BacT/Alert PF only | Pedi-BacT only | BacT/Alert PF and Pedi-BacT | BacT/Alert PF only | Pedi-BacT only | |
| Staphylococcus aureus | 10 | 5 | 0 | 11 | 0 | 1 |
| Coagulase-negative staphylococci | 25 | 4 | 3 | 1 | 1 | 0 |
| Group A and B streptococci | 1 | 1 | 0 | 1 | 1 | 0 |
| Streptococcus pneumoniae | 5 | 2 | 1 | 1 | 5 | 1 |
| Alpha-hemolytic streptococci | 6 | 1 | 0 | 4 | 2 | 0 |
| Enterococci | 4 | 0 | 2 | 0 | 0 | 1 |
| Enterobacteriaceaea | 11 | 11 | 2 | 8 | 3 | 4 |
| Miscellaneous organismsb | 4 | 0 | 2 | 5 | 2 | 1 |
| Candida spp. | 13 | 1 | 0 | 5 | 1 | 0 |
| Totalc | 79 | 25 | 10 | 36 | 15 | 9 |
a
Includes Enterobacter agglomerans, Enterobacter gergoviae, Enterobacter cloacae, Escherichia coli, Serratia marcescens, Klebsiella pneumoniae, Klebsiella oxytoca, Salmonella groups B and D, and an unidentified gram-negative rod.
b
Includes Pseudomonas aeruginosa, Stenotrophomonas maltophilia, unidentified nonfermenter, Haemophilus influenzae, Stomatococcus spp., Corynebacterium spp., and Bacillus spp.
c
Retrieval of isolates from a patient receiving antimicrobial agents in the BacT/Alert PF was statistically significant (P = 0.0180).