This arrhythmia occurs when there is a disruption of the electrical impulse through the heart.

On an ECG tracing, what represents a period of time with no electrical activity?

A patient needs to do an exercise stress test. The patient should not take a dose of Viagra, Cialis, or Levitra for erectile dysfunction ____ hours before a stress test.

A patient needs to do an exercise stress test. What information should the medical assistant give the patient prior to the test?

The lead wires are wrapped too closely together, and this artifact appears on the tracing.

The impulse from the AV node is picked up by which of the following?

The default chart speed is 20 mm/s.

________ artifact appears as jagged peaks with irregular height and spacing.

A specialized intermodal tract that takes the impulse to the left atrium is:

Turning on the muscle tremor filter will help decrease this type of artifact.