ECG Case #42 - Question #2

He undergoes emergent cardiac catheterization and a stent is placed in his left anterior descending coronary artery. Two days later he develops acute onset altered mental status and is found to have a blood pressure of 60/30 and heart rate of 110. He has a pulsus paradoxus of 30. His heart sounds are distant. His ECG at this time is below. What is his diagnosis and what is the treatment?

ElectricalAlternans

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