electrocardiograph

/ɪˌlektrəʊˈkɑːdɪəɡrɑːf/
an instrument for recording the electrical activity of the heart 心电图机 ( abbr: ECG)

noun [专属名词][内科] 心电图仪,[内科] 心电图描记器

You need to do an ECG (electrocardiograph).
你得做个心电图。

单词造句:
网友用“Electrocardiograph”造句精选
It accord with demand of digital electrocardiograph. 满足了数字化心电图机的需要。
One of the most important tests is the electrocardiograph. 其中最重要的测试是心电图。