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I went for a nuclear stress test yesterday where I walked on the treadmill until my heart rate was up to 168 for 9.5 minutes. I was so concerned I was going to have an SVT. The nurse practitioner said that an SVT doubles your heart rate. Does that mean if I am exercising and my heart rate is 160, a sudden SVT can put my heart rate at 320? That doesn\'t make sense.



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replied September 3rd, 2018
Heart Disease and Heart Attack Answer A64352
Thank you for asking at Ehealth forum!

I read your question and I understand your concern.
This is sinus tachycardia. In SVT,the patient is usually reported with symptoms like palpitations,dizziness etc and heart rate is more than 150bpm on ECG at rest.Nuclear Stress test is for ischemia not for rhythm abnormalities.
I hope it helps. Stay in touch with your healthcare provider for further guidance as our answers are just for education and counselling purposes and cannot be an alternative to actual visit to a doctor.
Take care

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