asked

I have been experiencing tachycardia for about an hour with a heart rate of 135 to 139. I took nitro 0.4mg twice, 15 minutes apart. I am currently on 25 mg of atenolol and 10 mg of isosorbide in the morning. I had a stress test and an echo two weeks ago, which were fine. I have a history of angina and have had episodes of tachycardia in the past, diagnosed as ventricular tachycardia. I am feeling lightheaded, weak, short of breath, dizzy, and shaky. What could be causing this tachycardia and what should I do?

August 25th, 2024

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