ECG (main): Difference between revisions

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== Measurement ==
{{Adult top}} [[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
*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
*Entire ECG strip is ~10 seconds
*Standard 12 lead ECG duration = 10 seconds


==Primary Analysis==
{| {{table}}
*[[ECG Rhythms]]
*[[ECG Axis]]
 
== Segments & Intervals  ==
*[[ST Elevation]]
*[[ST Depression]]
*[[QT Prolongation]]
 
{| style="width: 318px; height: 87px" cellspacing="1" cellpadding="1" border="1"
|-
|-
| Interval  
| '''Interval '''
| Time (s)  
| '''Time(s)'''
| Boxes
| '''Boxes'''
|-
|-
| PR  
| PR  
Line 24: Line 17:
|-
|-
| QRS  
| QRS  
| .06 - 0.10  
| 0.06 - 0.10  
| 1.5-2.5
| 1.5-2.5
|-
|-
| QTc  
| QTc  
| <0.44  
| <0.44  
| N/A
| N/A
|}
|}


==Primary Analysis==
*[[ECG Rhythms]]
*[[ECG Axis]]
*[[Low ECG voltage]]
==Segments & Intervals==
[[File:SinusRhythmLabels.svg|thumb]]
*[[ST Elevation]]
*[[ST Depression]]
*[[QT Prolongation]]
[[File:ConductionsystemoftheheartwithouttheHeart-en.png|thumb|Conduction system of the heart.]]
[[File:Grid.png|thumb]]
==Waves==
==Waves==
*[[Q Waves]]
*[[Q Waves]]
*[[T Waves]]
*[[T Waves]]
*[[R-wave in V1]]
*[[Wide QRS]]


==Hypertrophy/Enlargement==
==Hypertrophy/Enlargement==
*[[Right Atrial Enlargement]]
{{Cardiac hypertrophy DDX}}
*[[Left Atrial Enlargement]]
*[[Left Ventricular Hypertrophy]]
*[[Right Ventricular Hypertrophy]]


==Blocks==
{{Heart block DDX}}
*[[Right Bundle Branch Block]]
==See Also==
*[[Left Bundle Branch Block]]
*[[ACS - Anatomical Correlation]]
*[[Left Anterior Fascicular Block]]
*[[ECGs by Diagnosis]]
*[[Left Posterior Fascicular Block]]
*[[STEMI equivalents]]
*[[Early Repolarization]]


== [[Low ECG Voltage]] ==
==External Links==
*[http://ddxof.com/ecg-guide/ DDxOf: ECG Guide]


==See Also==
==Videos==
*[[ACS - ECG]]
{{#widget:YouTube|id=LCFXZvnW3rg}}
*[[ECGs by Diagnosis]]
{{#widget:YouTube|id= vNc4Xhbjh9o}}


== Source ==
==References==
*Adapted from Niemann, Lampe, Pani, Donaldson, ECGpedia.org
<references/>
*Journal of Electrocardiology. Vol 43 (2010). 40-42.


[[Category:Cards]]
[[Category:Cardiology]]

Revision as of 15:06, 21 December 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

SinusRhythmLabels.svg
Conduction system of the heart.
Grid.png

Waves

Hypertrophy/Enlargement

Cardiac Hypertrophy and Enlargement

Differential includes ischemic events, electrolyte abnormalities, and medication overdoses in addition to rheumatologic conditions[1][2]

Types of second degree AV block

AV blocks

Bundle and Fascicular Blocks

Premature Beats

See Also

External Links

Videos

{{#widget:YouTube|id=LCFXZvnW3rg}} {{#widget:YouTube|id= vNc4Xhbjh9o}}

References

  1. Hampton, JR. The ECG in Practice (5th edition), Churchill Livingstone 2008.
  2. Wagner, GS. Marriott’s Practical Electrocardiography (11th edition), Lippincott Williams & Wilkins 2007.