EKG Paper

EKG Course Overview
EKG Paper illustration
ECG tracings are recorded on grid paper. The horizontal axis of the
EKG paper records time, with black marks at the top indicating 3 second intervals.

Each second is marked by 5 large grid blocks. Thus each large block equals 0.2 second. The vertical axis records EKG amplitude (voltage). Two large blocks equal 1 millivolt (mV). Each small block equals 0.1 mV.

Within the large blocks are 5 small blocks, each representing 0.04 seconds.

EKG Paper illustration

second image