pulse fall time

例句：

1. 1. The patient's pulse fell to a dangerously low level after the surgery.
   手术后，患者的脉搏下降到了危险的低水平。
2. 2. The doctor monitored the patient's pulse fall time during the operation.
   医生在手术期间监测了患者的脉搏下降时间。
3. 3.The nurse recorded the patient's pulse fall time and vital signs before administering the medication.
   护士记录了患者脉搏下降时间和生命体征，然后才给药。