ECG (main): Difference between revisions
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{{Adult top}} [[ECG (peds)]] | |||
==Measurement== | ==Measurement== | ||
[[File:ConductionsystemoftheheartwithouttheHeart-en.png|thumb|Conduction system of the heart.]] | |||
[[File:Grid.png|thumb]] | [[File:Grid.png|thumb]] | ||
''All these measures are valid for the standard paper speed of 25 mm/Sec'' | |||
*1 small box = 1mm = 0.04 sec = 40 miliseconds | *1 small box = 1mm = 0.04 sec = 40 miliseconds | ||
*5 small boxes = 1 big box = 5mm = 0.2 sec = 200 miliseconds | *5 small boxes = 1 big box = 5mm = 0.2 sec = 200 miliseconds | ||
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| N/A | | N/A | ||
|} | |} | ||
==Primary Analysis== | ==Primary Analysis== | ||
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==AV Blocks== | ==AV Blocks== | ||
[[File:Second degree heart block.png|thumb|Types of second degree AV block]] | |||
{{AV block types}} | {{AV block types}} | ||
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*[[Left Anterior Fascicular Block]] | *[[Left Anterior Fascicular Block]] | ||
*[[Left Posterior Fascicular Block]] | *[[Left Posterior Fascicular Block]] | ||
==Premature Beats== | |||
*[[Premature atrial contraction]] | |||
*[[Premature junctional complex]] | |||
*[[Premature ventricular contraction]] | |||
==See Also== | ==See Also== | ||
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*[[STEMI equivalents]] | *[[STEMI equivalents]] | ||
*[[Early Repolarization]] | *[[Early Repolarization]] | ||
==External Links== | ==External Links== | ||
*[http://ddxof.com/ecg-guide/ DDxOf: ECG Guide] | *[http://ddxof.com/ecg-guide/ DDxOf: ECG Guide] | ||
==Videos== | |||
{{#widget:YouTube|id=LCFXZvnW3rg}} | |||
{{#widget:YouTube|id= vNc4Xhbjh9o}} | |||
==References== | ==References== | ||
Revision as of 21:26, 17 September 2020
This page is for adult patients. For pediatric patients, see: ECG (peds)
Measurement
All these measures are valid for the standard paper speed of 25 mm/Sec
- 1 small box = 1mm = 0.04 sec = 40 miliseconds
- 5 small boxes = 1 big box = 5mm = 0.2 sec = 200 miliseconds
- Standard 12 lead ECG duration = 10 seconds
| Interval | Time(s) | Boxes |
| PR | 0.12 - 0.20 | 3-5 |
| QRS | 0.06 - 0.10 | 1.5-2.5 |
| QTc | <0.44 | N/A |
Primary Analysis
Segments & Intervals
Waves
Hypertrophy/Enlargement
Cardiac Hypertrophy and Enlargement
- Right atrial enlargement
- Left atrial enlargement
- Left ventricular hypertrophy
- Right ventricular hypertrophy
AV Blocks
AV blocks
- First degree AV block
- Second degree
- Third degree AV block
- AV dissociation without complete heart block
Bundle and Fascicular Blocks
- Right Bundle Branch Block
- Left Bundle Branch Block
- Left Anterior Fascicular Block
- Left Posterior Fascicular Block
Premature Beats
See Also
External Links
Videos
{{#widget:YouTube|id=LCFXZvnW3rg}} {{#widget:YouTube|id= vNc4Xhbjh9o}}