The patient is a 78-year-old man who says he has felt dizzy for several hours. He denies chest pain, shortness of breath, or diaphoresis.
Upon exam, you find:
- General: Alert and oriented; breathing comfortably
- Lungs: Clear bilaterally
- Cardiovascular: RRR without m/r/g
- Abdomen: Soft and nontender, no pulsatile mass
- Extremities: No pain or swelling, pulses normal and equal in all 4 extremities
Review the ECG and consider what your diagnosis and next steps would be. Resolution of the case is described on the next page.