Final answer:
The nurse should obtain a cardiac monitor for use during the transfusion procedure to reduce the risk of cardiac dysrhythmias.
Step-by-step explanation:
The device that the nurse should obtain for use during the transfusion procedure to help reduce the risk of cardiac dysrhythmias is a cardiac monitor. A cardiac monitor is a device that is used to continuously monitor the patient's heart rate and rhythm during the transfusion of blood. This is important because severe blood loss and transfusion of multiple units of blood can put a strain on the heart, increasing the risk of cardiac dysrhythmias. By monitoring the heart rate and rhythm, any abnormalities can be detected early and appropriate interventions can be taken.