You are reviewing a patient's medical chart with a history of recurrent dysrhythmias. As you are concerned about the patient's medical history, you want to monitor the patient during selected formal exercise activities. Which of the following monitoring devices would be the MOST beneficial?
1. Pulmonary artery catheter
2. Electrocardiogram
3. Intracranial pressure monitor
4. Pulse oximeter
The correct answer will be posted in a few days.