Difference between revisions of "ECG (Main)"

(See Also)
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== General ==
+
== Measurement ==
 
*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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*[[Arrhythmias]]
 
*[[Arrhythmias]]
  
== Intervals  ==
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== Segments & Intervals  ==
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*[[ST Elevation]]
 +
*[[ST Depression]]
 +
*[[QT Prolongation]]
 +
 
 
{| style="width: 318px; height: 87px" cellspacing="1" cellpadding="1" border="1"
 
{| style="width: 318px; height: 87px" cellspacing="1" cellpadding="1" border="1"
 
|-
 
|-
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| N/A
 
| N/A
 
|}
 
|}
 
==Segments==
 
*[[ST Elevation]]
 
*[[ST Depression]]
 
*[[QT Prolongation]]
 
  
 
==Axis==
 
==Axis==

Revision as of 06:16, 5 February 2014

Measurement

  • 1 small box = 1mm = 0.04 sec = 40 miliseconds
  • 5 small boxes = 1 big box = 5mm = 0.2 sec = 200 miliseconds
  • Entire ECG strip is ~10 seconds

Rhythms

Segments & Intervals

Interval Time (s) Boxes
PR 0.12 - 0.20 3-5
QRS .06 - 0.10 1.5-2.5
QTc <0.44 N/A

Axis

  • Cannot be measured if BBBs are present
  • If up in leads 1 and AVF then normal axis

Waves

Hypertrophy/Enlargement

Blocks

Low ECG Voltage

See Also

Source

  • Adapted from Niemann, Lampe, Pani, Donaldson, ECGpedia.org
  • Journal of Electrocardiology. Vol 43 (2010). 40-42.