Operating Instructions - Jaken Medical...

Recognizing and Reducing ECG Artifacts
In addition, try to gain the patientÕs cooperation in staying very relaxed and
still. Sometimes, somatic tremor is unavoidable but its effects may be
minimized by having the patient place his/her hands under the buttocks.
Figure 10-1
Somatic Tremor and Patient
Movement Artifact
Baseline wander
Poorly afÞxed sensors may cause the baseline to wander. Normally, the
baseline will stabilize within a few seconds. If the baseline shifts up and down,
it may be due to the patientÕs breathing or to loose or corroded sensors.
Figure 10-2
Poorly AfÞxed Sensor
Artifact
Wide baseline
Electrical interference may produce a wide baseline. Its amplitude depends on
the strength of the current source and the lead being recorded. In any one lead,
the amplitude of the interfering signal is uniform.
Figure 10-3
Electrical Interference
Artifact
Eclipse Operating Instructions 10-5