In the standard leads I, II, and III used in this lab exercise, which location is used as the ground?

A) The left ankle
B) The right wrist
C) The right ankle
D) The left wrist
E) Either wrist or either ankle can be used as the ground.

Standard Leads

Predetermined positions on the body where electrodes are placed for the purpose of recording an electrocardiogram (ECG).

Lab Exercise

A practical, hands-on activity or experiment carried out in a laboratory setting for educational purposes, often to explore scientific principles.

Ground

typically refers to the solid surface of the Earth, but in electrical contexts, it is a reference point in an electrical circuit from which voltages are measured.