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.

Somatic tremor artifact is observed on the ECG tracing. What should the medical assistant do to eliminate the artifact?

What chest electrode is placed on the fifth intercostal space on the mid-clavicular line?

This artifact can occur if the electrodes are placed on bony areas or with the breathing movement.

Lead II is created using the:

What is true regarding augmented leads?

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

The R wave is a large triangular shaped wave.

This artifact can occur if the electrodes are dirty or expired or if the gel on the electrodes is dried.

There is artifact on Leads II and III. What electrode would you check?