Strep pneumoniae resistance to penicillin and S. aureus resistance to oxacillin. Pseudomonas aeruginosa resistance to imipemen. To be sure that the organism was viable 5. List at least three factors to consider when choosing an antibiotic for therapy, in addition to Kirby-Bauer or MIC test results. Toxicity, cost, interference with other drugs, etc.
Most clinicians try to achieve a conc.
Because if they don't, the treatment may fail to totally eradicate the infection.