A patient arrives at the emergency department with reports o…
A patient arrives at the emergency department with reports of fatigue, dizziness, and feeling like they are going to faint. The patient takes metoprolol and carvedilol to control hypertension and heart failure. The heart rhythm in the ambulance showed the following (see figure below). Current vital signs include a blood pressure of 104/45 with a respiratory rate of 23, HR of 40 and SaO2 of 93% on RA. The patient stated he has never felt like this before. At this time the nurse suspects which of the following may be causing the patient’s symptoms?