preanesthetic preparation

例句：

1. 1. Before thesurgery, the patient needs to undergo apreanesthetic preparation.
   手术前，患者需要进行麻醉前准备。
2. 2. The anesthesiologist carefully reviewed the patient'smedical history and performed a preanestheticpreparation.
   麻醉师仔细审查了患者的病史，并进行了麻醉前准备。
3. 3. During thepreanesthetic preparation, the doctor administeredmedication to the patient.
   在麻醉前准备期间，医生给患者注射了药物。