Agar slant (e.g. chocolate, tryptic soy)
Submit pure culture of organism on agar plates to keep turn-around-time of susceptibility to a minimum.
Clearly state the name (ID) of the organism submitted for susceptibility testing. If the identification is not indicated, the organism will be identified at an additional charge. If the organism identification is unknown, order the IDEN test and indicate that susceptibility testing is desired.