TABLE 3.
Analysis of errors by species and antimicrobial
| Organism (no. different isolates) | Overnight panel
|
Rapid panel
|
||
|---|---|---|---|---|
| No. of major errors (drug[s]) | No. of very major errors (drug[s]) | No. of major errors (drug[s]) | No. of very major errors (drug[s]) | |
| Gram negative | ||||
| Acinetobacter spp. (3) | 0 | 0 | 0 | 3 (Azt, Cfp, To) |
| Enterobacter spp. (6) | 2 (Am, Crm) | 3 (Azt, T-S [2]) | 4 (Am, Ctn, Mz, Pi) | 0 |
| Escherichia coli (7) | 12 (Am, Azt [3], Caz, Cf, Cfz [2], Crm [2], Imp, To) | 2 (A-S, Azt) | 4 (A-S, Mz, Pi, T-S) | 1 (Cfp) |
| Klebsiella spp. (7) | 5 (A-S, Azt, Cf, Cfz, Crm) | 1 (T-S) | 3 (Am, Mz, T-S) | 3 (Am, Cfz, T-S) |
| Pseudomonas aeruginosa (2) | 5 (Caz, Cp, Mz, Pi, Tim) | 1 (Mz) | 0 | 0 |
| Proteus-Morganella spp. (1) | 0 | 0 | 0 | 3 (A-S, Am, Pi) |
| Salmonella-Shigella spp. (1) | 0 | 0 | 0 | 3 (A-S, Mz, Pi) |
| Serratia marcescens (2) | 0 | 3 (Caz, Cft, Crm) | 0 | 4 (Cfz, Crm, Imp [2]) |
| Other (1) | 1 (Azt) | 0 | 0 | 1 (Mz) |
| Gram positive | ||||
| Beta-hemolytic Strepto- coccus spp. | 0 | 0 | 0 | 0 |
| Enterococcus spp. (1) | 2 (Am, P) | 0 | 0 | 1 (Sts) |
| Micrococcus spp. (1) | 0 | 1 (P) | 0 | 0 |
| Staphylococcus aureus (14) | 9 (Aug [2], Cd, Ery, Gm [2], Ox, P, Va) | 4 (E, Ox, P, Rifa) | 2 (Cd, Imp) | 5 (Cd [4], Ox) |
| Coagulase-negative | ||||
| Staphylococcus spp. (21) | 11 (Cd [2], Cp, Gm, Ery [2], P [2], Ox, T-S, Te) | 13 (Cd, Gm [2], Ox, T/S [8], Te) | 12 (Cd, E [3], Ox [2], P, Te [2], Va [3]) | 6 (Cd [2], Ox [4]) |
a
Rifampin was not present on rapid gram-positive panels. Am, ampicillin; A-S, ampicillin-sulbactam; Azt, aztreonam; Cd, clindamycin; Cfz, cefazolin; Cfp, cefoperazone; Cft, cefotaxime; Ctn, cefotetan; Caz, ceftazidime; Crm, cefuroxime; Cf, cephalothin; Cp, ciprofloxacin; Ery, erythromycin; Gm, gentamicin; Imp, imipenem; Mz, mezlocillin; Ox, oxacillin; P, penicillin; Pi, piperacillin; Rif, rifampin; Sts, streptomycin synergy; Tim, ticarcillin-clavulanate; To, tobramycin; T-S, trimethoprim-sulfamethoxazole; Va, vancomycin.