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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Sudden Rise In Heart Rate In Resting Mode?

I ll just be sitting down watching tv or talking and my heart will start racing , I feel weak and anxious and then when I lay down and breathe in my nose and out my mouth it goes back to normal , it started when I was 13, and I am now 17 I have noticed that it occurs more now but I have no idea why it s happening
Mon, 25 Aug 2014
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Critical Care Specialist,  's  Response
Hi thanks for writing to health care magic.
Sudden Increase in heart rate, while resting could be due to sympathetic stimulation. There are many causes for sympathetic stimulation and feeling tense, getting frightened are some of the common causes. It has started at the age of 13 and still persistent at the age of 17, anemia (decreased hemoglobin) and hyperthyroidism are to be ruled out as causes for your problem. It can be even a normal without any cause. You need some basic investigations like complete blood count.ECG and thyroid profile. Consult a physician who may examine you and may prescribe you above mentioned test to find out the cause for increase in your heart rate.
Hope this answers your question.
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What Causes Sudden Rise In Heart Rate In Resting Mode?

Hi thanks for writing to health care magic. Sudden Increase in heart rate, while resting could be due to sympathetic stimulation. There are many causes for sympathetic stimulation and feeling tense, getting frightened are some of the common causes. It has started at the age of 13 and still persistent at the age of 17, anemia (decreased hemoglobin) and hyperthyroidism are to be ruled out as causes for your problem. It can be even a normal without any cause. You need some basic investigations like complete blood count.ECG and thyroid profile. Consult a physician who may examine you and may prescribe you above mentioned test to find out the cause for increase in your heart rate. Hope this answers your question.