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What Causes Elevated Heart Rate Along With Dizziness?

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Posted on Tue, 6 Sep 2016
Question: Hi All afternoon my heart rate has been over 100. It has gone as high as about 115 bpm. I feel a little faint but no real pains apart from a twinge here and there.

I have tests a few months ago on my heart and it said all was OK. An Echo and Nuclear Scan were fine.

Please advise.
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Answered by Dr. Kathy Robinson (20 minutes later)
Brief Answer:
this is not a dangerous level

Detailed Answer:
Hello,
it is true that your heart rate should be less than 100. There are several things that can make it too high. Anxiety, smoking, caffeine, alcohol, decongestants are just a few of them. The rate of your heart will not hurt you if it is only temporary but if it persists you need to see a doctor. Also if the feeling faint lasts more than a few hours you should see a doctor right away.
A fast heart rate combined with feeling faint can be a sign of an abnormal heart rhythm. If this lasts more than 6-8 hours then I think you should be seen right away.
Please let me know if you have further questions.
Dr. Robinson
Note: For further queries related to coronary artery disease and prevention, click here.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Kathy Robinson

General & Family Physician

Practicing since :1989

Answered : 3535 Questions

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What Causes Elevated Heart Rate Along With Dizziness?

Brief Answer: this is not a dangerous level Detailed Answer: Hello, it is true that your heart rate should be less than 100. There are several things that can make it too high. Anxiety, smoking, caffeine, alcohol, decongestants are just a few of them. The rate of your heart will not hurt you if it is only temporary but if it persists you need to see a doctor. Also if the feeling faint lasts more than a few hours you should see a doctor right away. A fast heart rate combined with feeling faint can be a sign of an abnormal heart rhythm. If this lasts more than 6-8 hours then I think you should be seen right away. Please let me know if you have further questions. Dr. Robinson