The Nurse in the Critical Care Unit (CCU)is Caring for a Newly

The nurse in the critical care unit (CCU) is caring for a newly admitted patient with chest pain.She is aware that arrhythmia may be caused by which of the following? (Select all that apply.)

A) Electrolyte disturbances
B) Heart damage
C) Medications
D) Respiratory arrest
E) None of the above