Qt Interval Overview

Encyclopedia: Qt Interval

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In medicine, specifically cardiology, the QT interval is a measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle. The QT interval is dependent on the heart rate in an obvious way and has to be adjusted to aid interpretation. The standard clinical correction is to use Bazett's formula, named after physiologist Henry Cuthbert Bazett, calculating the...


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Question and Answer

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Can i take singular for asthma with long qt interval?
I have congenital long qt syndrome and have developed asthma at the age of 70....

I don't have any idea about the problem you have. It is better to consult your doctor regarding this for safety reasons. For more info about asthma you may visit: Asthma...

Asked by terriedoboze - 5 months ago

What can a prolonged QT interval mean on an ECG?
I had an ECG today, im 23, it had a prolonged QT which was 500ms,...

Lange-Nielsen syndrome A prolonged QT (QRST) interval. It's a genetic disorder, don't exert too much effort, a prlonged QT interval with tachycardia can overload the myocardial cells and can cause sudden...

Asked by Ben - 7 months ago

Forum Search

OmgiliOMGILI

  • QT interval - 6 replies

    Hi self directed study question here. Huszaar's book state's "In general, the QT interval is less than half the preceding R-R interval" Is this a widely accepted statement, i have not seen

    Jun 07, 2007

  • Has anyone actually used typical neuroleptics to treat tics? - 5 replies

    I always hear about how the cause TD and lengthen the QT interval so people are afraid of them I always hear about how the cause TD and lengthen the QT interval so people are afraid of them...

    Oct 05, 2008

  • SSRIs and heart changes - 4 replies

    suddenly because of QT interval prolongation! This post has been edited by hollywoodfreaks: Nov 25 2005 is sometimes deadly. I remember reading in the Lexapro PI sheet that the drug increases the QTc interval

    Nov 26, 2005

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