Artifacts Such as Muscle Tremors Can Make Assessment of Cardiac

Multiple Choice

Artifacts such as muscle tremors can make assessment of cardiac rhythm difficult because:

A) an artifact can obscure the underlying rhythm.
B) an artifact can cause the pacer to fire prematurely.
C) the pacemaker may confuse the artifact with an electrical impulse and not fire.
D) the QRS complexes may be obscured by the pacer spikes.