Which of the following causes AC interference artifact?
A)Voluntary movement, such as talking or chewing gum
B)Lead wires crossed and not pointed toward the hands and feet
C)Oil, lotion, dirt, or hair under the electrodes
D)Involuntary movement due to Parkinson's disease

Question

Quizplus · Accepted Answer

AC interference artifact is caused by the interference of alternating current (AC) from external sources, such as electrical wires, which can be picked up by lead wires and produce unwanted signals in the electrocardiogram (ECG) recording. This type of artifact is often seen as a regular, uniform pattern on the ECG, and can be diminished by ensuring that the lead wires are not crossed and are pointed in the correct direction (toward the hands and feet) to reduce the chance of interference. Voluntary movements, such as talking or chewing gum, can produce motion artifact, which appears as irregular, random signals on the ECG. Oil, lotion, dirt, or hair under the electrodes can produce baseline artifact, which appears as uneven or distorted baseline on the ECG. Involuntary movement due to Parkinson's disease can produce tremor artifact, which appears as rhythmic, oscillatory signals on the ECG.

Which of the Following Causes AC Interference Artifact