NHA Certified Clinical Medical Assistant (CCMA)Clinical Patient CareEasy
A medical assistant is preparing to perform an electrocardiogram (ECG) on an adult patient. The MA should instruct the patient to remove which of the following items prior to the procedure to prevent artifact?
- AJewelry
- BEyeglasses
- CSocks
- DDentures
Show answer & explanationAnswer & explanation
Correct answer: A. Jewelry
Metal objects such as jewelry can interfere with the electrical signals picked up by the ECG electrodes, leading to artifact. Removing jewelry helps ensure a clear and accurate tracing.
Why the other options are wrong
- B. Eyeglasses are typically not made of metal that would interfere with an ECG and are not usually removed.
- C. Socks do not interfere with ECG readings as electrodes are placed on the skin, not clothing.
- D. Dentures are inside the mouth and do not typically interfere with external ECG electrode placement or electrical signals.
ECG Artifact Prevention
Measures taken to minimize interference and ensure a clear, accurate electrocardiogram tracing.
- Patient preparation is crucial.
- Remove metal objects.
- Ensure good skin contact for electrodes.
Memory trick: ECG: Electrical Clarity Guarded by removing Links (metal).