The Nurse Is Obtaining a 12-Lead ECG on a Patient

The nurse is obtaining a 12-lead ECG on a patient with chest discomfort and interprets the results as a very thick-lined waveform tracing.The nurse troubleshoots this tracing by performing which appropriate intervention?

A) Unplugs the battery-operated equipment in the room one item at a time.
B) Reapplies the electrodes to ensure proper connection with the skin.
C) Adjusts the extremity electrodes on the wrists and ankles.
D) Asks the patient to hold his breath to see if the tracing improves.