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. 2008 Jul 25;4(7):e1000141. doi: 10.1371/journal.pgen.1000141

Table 4. Kp342 Antibiotic Resistance Profile.

Drug Family Drug (μg) Phenotype Diameter Zone of Inhibition (mm)
Interpretive Standards
Observed Resistance Intermediate Sensitive
Aminocoumarin Novobiocin (30) Resistant 0 ≤17
Aminoglycoside Gentamicin (10) Intermediate 14 13–14
Kanamycin (30) Sensitive 30 ≥18
Neomycin (30) Resistant 9 ≤12
B-Lactam
Cephalosporin Cefotaxime (30) Sensitive 25 ≥23
Cefoperazone (75) Sensitive 24 ≥21
Cefazolin (30) Sensitive 20 ≥18
Ceftriaxone (30) Intermediate 15 14–20
Cefuroxime (30) Intermediate 15 15–17
Cephalothin (30) Resistant 14 ≤14
Moxalactam (30) Intermediate 22 15–22
B-Lactam
Penicillin Ampicillin (10) Resistant 0 ≤15
Mezlocillin (75) Intermediate 18 18–20
Penicillin (10) Resistant 0
Piperacillin (100) Intermediate 19 18–20
Ticarcillin (75) Resistant 7 ≤14
Macrolide Azithromycin (15) 10 *
Erythromycin (15) Resistant 0 *
Quinolone Ciproflaxacin (5) Intermediate 18 16–20
Nalidixic acid (30) Resistant 8 ≤13
Norfloxacin (10) Resistant 0 ≤12
Oxolinic acid (2) Resistant 7 ≤10
Sulfonamide Sulfisoxazole (0.25) Resistant 8 ≤12
Trimethoprim (5) Resistant 0 ≤10
Tetracycline Minocycline (30) Resistant 8 ≤14
Oxytetracycline (30) Resistant 0 *
Tetracycline (30) Resistant 10 ≤14
Other Rifampin (5) Resistant 0 *

*: No interpretive standards given for the Enterobacteriacaeae.