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A member asked:
Is qtc more important than qt?
4 doctors weighed in across 2 answers
Yes: Within normal range of heart rate, they are close but the corrected qt would be more useful. Changes in qt interval are also important to follow.
Answered 7/25/2015
4.9k views
Yes, QTc: The qt interval measures the rate of myocardial repolarization. There are diseases of the heart that affect the ion channels that control the rate of repolarization and there are drugs that affect those channels. For complicated reasons, there are other factors that affect repolarization speed. "correction" for heart rate yields the qtc which "corrects" for some of these factors.
Answered 7/25/2015
4.9k views
Related Questions
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On day 4 of 250mg x2 daily of Clarithromycin my Qt and Qtc have not changed at all. Is this just a rare side effect that doesnt happen much?
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A member asked:
I took an ECG test some minutes ago and these are the results and i need interpretation of the results as follows; HR.........59bpm P............122ms PR..........200ms QRS........94ms QT/QTc.....406/403ms P/QRS/T.....63/54/-15 RV5/SV1......2.603/2.0?
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A member asked:
What is the criteria for prolong QT? At what score does a lengthened QTc become concerning? Above 500, for example??
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A member asked:
I understand what QT interval is. However, can someone explain in common words what is QTc? How do you calculate it? And what's the range?
A doctor has provided 1 answer
A member asked:
Why bazetts formula is used to correct qt and why not qt nomogram? I have norml results using qt nomogram, using bazzets I have qtc 470 ms. Thanks.
5 doctors weighed in across 2 answers
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