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A member asked:

What conditions, in general, might cause the qtc interval on an ecg to become prolonged as the heart rate increases?

A doctor has provided 1 answer
Dr. Frank Amico Sr answered

Specializes in Addiction Medicine

causes of prolonged QT interval are genetic, drugs (of which there are many)low potassium, low calcium and heart failure . These causes result in the disturbance of the conduction system in the heart

Dr Kuitems and another doctor agreed

Answered 4/25/2021

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Related Questions

A member asked:

Should I be concerned that my QTc number was 608 with a heart rate at 117? The doctor confirmed my ECG and now I'm waiting to see a cardiologist.

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A 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.

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A member asked:

Healthy heart, echos and echos etc. my QTC has always been 398/405 recently it's now always 420/430 on baseline resting ECG. Electrolytes normal, no long Qt syndrome. whys it higher now?

A doctor has provided 1 answer

A member asked:

I did an ECG about six months ago and everything was fine. Yesterday I suddenly felt like fainting, increased heart rate, low pressure when I was sat. Should I do another ECG? Or should my heart be fine cause its only been 6 months?

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A member asked:

What could cause heart rate to jump to 262 bpm for a brief time? I took a quick ecg reading (kardia) and it showed a sharp increase in hr on the graph. Pvcs and couplets shown on ecg as well. Could noise cause this?

2 doctors weighed in across 2 answers

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