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*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 | *Entire ECG strip is ~10 seconds | ||
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==Primary Analysis== | |||
*[[ECG Rhythms]] | |||
*[[ECG Axis]] | |||
*[[Low ECG Voltage]] | |||
== Segments & Intervals == | |||
*[[ST Elevation]] | |||
*[[ST Depression]] | |||
*[[QT Prolongation]] | |||
==Waves== | ==Waves== | ||
Revision as of 05:07, 25 February 2015
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
| Interval | Time (s) | Boxes |
| PR | 0.12 - 0.20 | 3-5 |
| QRS | .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
Bundle and Fascicular Blocks
- Right Bundle Branch Block
- Left Bundle Branch Block
- Left Anterior Fascicular Block
- Left Posterior Fascicular Block
See Also
Source
- Adapted from Niemann, Lampe, Pani, Donaldson, ECGpedia.org
- Journal of Electrocardiology. Vol 43 (2010). 40-42.