Table 2—

Cefepime concentrations in plasma (Čp,cefepime), bronchoalveolar lavage fluid (CBAL,cefepime)+ and epithelial lining fluid (CELF,cefepime)

ControlALI
Čp,cefepime mg·L−124.4±1.735.2±2.7*
CBAL,cefepime mg·L−10.51±0.0815.09±1.83*
CELF,cefepime
 Method A mg·L−122.6±4.234.6±5.3
  % Čp,cefepime95.4±19.3100.3±14.5
 Method B mg·L−14.1±0.8#25.5±3.2*,#
  % Čp,cefepime16.4±2.773.9±8.4
 Method B, single cycle mg·L−114.9±4.225.8±3.2*,#
  % Čp,cefepime59.0±15.475.8±9.5
 Method C mg·L−115.6±3.224.8±3.3*,#
  % Čp,cefepime62.0±12.574.0±10.4
  • Data are presented as mean±sem (n=9)

  • CELF,cefepime methods: A: technetium-99m diethylenetriaminepenta-acetic acid method

  • B: urea method using the fluid pooled from the six lavage cycles

  • B, single cycle: urea method using the fluid from the first lavage cycle alone

  • and C: urea method with correction for urea diffusion during lavage (see Appendix)

  • : steady state

  • +: mean from all six lavages

  • *: p<0.05 versus control

  • #: p<0.05 versus CELF,cefepime method A