acardia

例句：

1. 1. The patient's heart rate was acardiac, indicating that he was in shock.
   患者的心率异常，表明他处于休克状态。
2. 2. The doctor performed an emergency acardiac procedure to save the patient's life.
   医生进行了紧急的心脏停跳手术来挽救患者的生命。
3. 3. The suddendrop in blood pressure caused the patient's acardiac rhythm.
   突然下降的血压导致患者的心律不齐。