The chest leads, or precordial leads, view the heart in a HORIZONTAL plane.
胸导联或心前导联在水平面监测心脏。
Osmosis-泌尿
It's also important to get an electrocardiogram, which typically shows tall, peaked T waves with a narrow base best seen in the precordial leads V1 through V6, as well as a shortened QT interval, and ST-segment depression.
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin.
These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.
It is a very commonly performed cardiology test.