A Cardiac Surgery Patients New Onset of Signs and Symptoms

A cardiac surgery patients new onset of signs and symptoms is suggestive of cardiac tamponade. As a member of the interdisciplinary team, what is the nurses most appropriate action?

A) Prepare to assist with pericardiocentesis.
B) Reposition the patient into a prone position.
C) Administer a dose of metoprolol.
D) Administer a bolus of normal saline.