• Number of disks on plate
• Incubation temperature
• Incubation atmosphere
• Incubation time
• Endpoint measurement
Chapter 6 in this manual describes quality control practices that provide con-
fidence that all variables are properly controlled. In addition, refer to the trouble-
shooting guide in the Appendix.
Drug Culture on 11/2 Culture on 11/5 Culture on 11/9
Amikacin S S S
Ceftazidime S S S
Ciprofloxacin S S S
Gentamicin S S R
Piperacillin S S S
Tobramycin S S R