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Table 4 Proportion of therapeutic drug monitoring (TDMs) with insufficient % time (T) >4 × the minimal inhibitory concentration (MIC) for various MICs

From: β-lactam antibiotic concentrations during continuous renal replacement therapy

 

Insufficient drug concentrations

MIC (mg/L)

Target concentrations (mg/L)

CEF (n = 9)

TZP (n = 20)

MEM (n = 44)

32

128

8 (89)

9 (45)

44 (100)

16

64

1 (11)

4 (20)

44 (100)

8

32

1 (11)

0

41 (93)

4

16

1 (11)

0

20 (45)

2

8

0

0

1 (2)

1

4

0

0

0

0.5

2

0

0

0

  1. Data are expressed as counts (percentage). Boldface values indicate MIC corresponding to European Committee on Antimicrobial Susceptibility Testing (EUCAST) clinical breakpoints for Pseudomonas aeruginosa. CEF, cephalosporins; TZP, piperacillin/tazobactam; MEM, meropenem.