In the study, 1,002 patients were randomized to a single dose of 1 g of ertapenem or 2 grams of cefotetan infused over a 30-minute period within 60 minutes before elective colorectal surgery.

• 在此研究中，1002名病人在进行择期手术之前随机输注1克剂量的厄他培南或2克剂量的头孢替坦，输注在60分钟之内完成，大约有30分钟的输注时长。