The Nurse Is Caring for a Client with a Temporary

The nurse is caring for a client with a temporary pacemaker.The client's bedside monitor shows a spike followed by a QRS complex.What is the nurse's best action?

A) Remove the pacemaker; it is not needed.
B) Decrease the threshold of the pacemaker.
C) Document the finding in the client's chart.
D) Set the pacemaker to the synchronous mode.