View source for ECG (main)

{{AdultPage|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

{| {{table}}
|-
| '''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==
*[[ECG Rhythms]]
*[[ECG Axis]]
*[[Low ECG voltage]]

==Segments & Intervals==
[[File:SinusRhythmLabels.svg|thumb]]
[[File:ConductionsystemoftheheartwithouttheHeart-en.png|thumb|Conduction system of the heart.]]
[[File:Grid.png|thumb]]
*[[ST Elevation]]
*[[ST Depression]]
*[[QT Prolongation]]

==Waves==
*[[Q Waves]]
*[[T Waves]]
*[[R-wave in V1]]
*[[Wide QRS]]

==Hypertrophy/Enlargement==
{{Cardiac hypertrophy DDX}}
{{Heart block DDX}}

==See Also==
*[[ACS - Anatomical Correlation]]
*[[ECGs by Diagnosis]]
*[[STEMI equivalents]]
*[[Early Repolarization]]

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

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

==References==
<references/>

[[Category:Cardiology]]