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A 19-year-old female asked:

I had an 24 hr ecg and at a time i was walking at a normal pace my heart rate was 180bpm and i was feeling breathless it was in sinus rhythm causes?

2 doctor answers4 doctors weighed in
Dr. Jeffrey Webber
Cardiology 33 years experience
?: This might be normal for you, the heart rate response I mean to exercise. Alternately it could be you need more aerobic exercise
Dr. Carlos Orrego
Cardiology 29 years experience
If you were just walking slowly , 180 bpm might be abnormal for that type of exercise .
Aug 3, 2014
Dr. Hirenkumar Italia
Family Medicine 15 years experience
Sinus Tachycardia: Many reason for rapid heart rate: i.e. Atrial Fibrilation, Flutter, PSVT, Sinus Tachycardia. If it is Sinus Tachycardia asyou mentioned, the causes are as below: Hyperthyroidism, fever, volume depletion, anxiety, pheochromocytoma, sepsis, anemia, hypotension and shock, pulmonary embolism, heart failure, low oxygen, COPD, nicotine or caffeine etc....
Last updated Aug 3, 2014

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