cardiogram

例句：

1. 1.The patient's heart rate was monitored during the procedure.
   在手术过程中，患者的心率被监测。
2. 2. The doctor ordered an electrocardiogram to check for any irregularities in the heart rhythm.
   医生要求进行心电图检查，以检查心脏节律是否有任何异常。
3. 3. During the test, the patient experienced a slight discomfort due to the electrodes being placed on his chest.
   测试期间，由于电极被放置在他的胸部，患者感到轻微的不适。