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Description
English: QT interval corrected by heart rate, according to Bazett's formula,[1] Fridericia's formula,[2] and subtracting 0.02 s from QT for every 10 bpm increase in heart rate.[3] Up to 0.42 s (≤420 ms) is chosen as normal QTc of QTB and QTF in this diagram.[4]
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References

  1. ↑ Bazett HC. (1920). "An analysis of the time-relations of electrocardiograms". Heart (7): 353–370.
  2. ↑ Fridericia LS (1920). "The duration of systole in the electrocardiogram of normal subjects and of patients with heart disease". Acta Medica Scandinavica (53): 469–486.
  3. ↑ Lesson III. Characteristics of the Normal ECG Frank G. Yanowitz, MD. Professor of Medicine. University of Utah School of Medicine. Retrieved on Mars 23, 2010
  4. ↑ Dr Dean Jenkins and Dr Stephen Gerred. A normal adult 12-lead ECG. ecglibrary.com. Retrieved on Jan 28, 2018
Author

Mikael Häggström.

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  • By Mikael Häggström, used with permission.

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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
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24 March 2010

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Date/TimeThumbnailDimensionsUserComment
current11:51, 23 December 2021Thumbnail for version as of 11:51, 23 December 20211,231 × 879 (138 KB)Mikael Häggströmbpm
11:47, 23 December 2021Thumbnail for version as of 11:47, 23 December 20211,231 × 900 (138 KB)Mikael HäggströmLess risk of misunderstanding
23:01, 28 June 2012Thumbnail for version as of 23:01, 28 June 20121,231 × 879 (103 KB)Mikael HäggströmRecolored
22:59, 28 June 2012Thumbnail for version as of 22:59, 28 June 20121,231 × 879 (103 KB)Mikael HäggströmColored
22:36, 28 June 2012Thumbnail for version as of 22:36, 28 June 20121,231 × 879 (84 KB)Mikael HäggströmHorizontal compression
22:07, 28 June 2012Thumbnail for version as of 22:07, 28 June 20121,254 × 754 (73 KB)Mikael HäggströmExpanded and formatted y-axis
11:38, 9 December 2010Thumbnail for version as of 11:38, 9 December 2010784 × 444 (37 KB)Mikael HäggströmExtended
05:06, 25 March 2010Thumbnail for version as of 05:06, 25 March 2010704 × 422 (37 KB)Mikael Häggströmcontrasted
16:01, 24 March 2010Thumbnail for version as of 16:01, 24 March 2010704 × 422 (37 KB)Mikael Häggströmcompleted
15:55, 24 March 2010Thumbnail for version as of 15:55, 24 March 2010684 × 425 (36 KB)Mikael Häggström{{Information |Description={{en|1=g}} |Source={{own}} |Author=Mikael Häggström |Date=g |Permission= |other_versions= }}

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