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A 25-year-old female asked:

Heart rate 160bpm but ecg shows it's still in a normal sinus rythym, just really fast. what caould cause this? it lasted for about 45mins @ that speed

1 doctor answer1 doctor weighed in
Dr. Mark Rasak
Cardiology 34 years experience
Multifactoral: heart rate can be high for many reasons. ADHD meds may calm your brain but its still a stimulant. Any energy drinks,caffeine, decongestants, natural supplements,occult infections like UTI, thyroid overactivity, etc. Some times we just don't know and its called inappropriate sinus tachycardia syndrome.If a thorough work up- labs, urine, imaging are done, and still a problem-meds like b-block vs EPS

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Last updated Feb 27, 2015

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