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A 26-year-old member asked:

On my ecg my heart rate speed up from 74 to 94 so it has two different rates. does this mean the automated qt and qtc will be incorrect? due to my sinus arrhythmia.

1 doctor answer2 doctors weighed in
Dr. Brad Goldenberg
Neonatology 37 years experience
No: Sinus rate is dependent on the firing rate of your SA node in the atria and is independent of the conduction time through the heart which is what the QT interval is, check with your cardiologist on any other questions

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Last updated Mar 17, 2020

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