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What is artifact and what can cause artifact?
List three situations in which the condition of the patient’s skin can interfere with electrode contact.
Why should the EKG technician avoid placing electrodes on surgical scars or open wounds?
Why should patients who are in the last trimester of pregnancy never be placed flat on their backs? Describe the proper position for these patients.
Why are precordial leads placed differently for a patient with dextrocardia?
List two ways to reduce somatic tremor on the EKG.
What type of baseline interference is caused by electrodes that have dried out?
Where can basic troubleshooting information for the EKG machine be found?
What should the EKG technician do if the suggested troubleshooting actions do not resolve a problem with an EKG machine?