Table 1.

Pseudomonas aeruginosa antibiograms with MIC calculated by Phoenix™ Automated Microbiology System (BD Diagnostics, Sparks, MD, USA).

	Susceptibility Profile (MIC)
Antimicrobial	Patient 1	Patient 2	Patient 3
Piperacillin–tazobactam	R	R (64/4)	R (64/4)
Ceftazidime	I	R (16)	R (>16)
Ceftazidime–avibactam	S	S (8/4)	S (4/4)
Cefepime	I	R (>8)	R (>8)
Ceftolozane–tazobactam	R	R (>4/4)	R (>4/4)
Imipenem	R	R (>8)	R (>8)
Meropenem	R	R (>16)	R (>16)
Meropenem–vaborbactam	R	R (>8/8)	R (>8/8)
Aztreonam	I	R (>16)	I (8)
Amikacin	R	R (>16)	S (16)
Tobramycin	R	R (>4)	S (≤1)
Ciprofloxacin	R	R (>1)	I (0.25)
Colistin	N/A	S (1)	S (2)

S, susceptible; I, intermediate; R, resistant; N/A, not available.