Probabilities of target attainment for 1 g of ertapenem dosed as a 15-min infusion (inf.) of 1,000 mg every 24 h (Q24h), as a 15-min infusion of 500 mg every 12 h (Q12h), or as a continuous infusion of 1,000 mg/day with a 500-mg loading dose at 0 h. The PK/PD targets of an fTMIC of 40%, 75%, and 100% were utilized for the ertapenem concentrations in plasma, subcutaneous tissue (SC), and peritoneal fluid (PF).