Lung, bronchial mucosa, and pleural tissue samples were obtained from 14 pa
tients undergoing lung surgery 1 to 5 h after administration of 1 g of mero
penem. The mean (range) peak concentrations of meropenem were 3.9 (0.2 to 8
.2), 6.6 (3.0 to 13.3), and 2.8 (0.6 to 7.8) mg/kg of tissue, respectively,
exceeding the MICs at which 90% of isolates are inhibited for most respira
tory pathogens.