Do you know about - How to Read an Ecg
Hearing Devices! Again, for I know. Ready to share new things that are useful. You and your friends.The electrocardiogram or Ecg is a curative gismo that measures the electrical activities of the heart using electrodes placed in unavoidable positions on the body. Physicians use the information gathered from the gismo to narrative the heart rate, myocardial infarctions, arrhythmias, ventricular hypertrophies, atrial enlargements, and bundle field blocks.
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We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Hearing Devices.The Ecg gives out ten basic pieces of information about the heart. They are the following:
1. Rate. To decide the rate, reconsider two durations of same points in a consecutive Ecg waveform (R-R interval). Take this period and divide it into 60. The equation should be: Rate = 60/(R-R interval)
2. Rhythm. This includes normal sinus rhythm (Nsr), regular, and irregular rhythm.
3. Axis. The basic principle in finding the axis is searching for the lead whose Qrs involved is closest zero.
4. P Wave Morphology. Generally, the P wave should neither measure more than one box wide nor one box tall. If it exceeds these, it means that whether or both atria is enlarged and the patient is hypertrophied. V1 is the best lead to look for the P wave.
5. Pr Interval. The Pr interval defines Av conduction time which is commonly in the middle of 0.12 - 0.20 milliseconds (or three to five boxes wide). An Av block is present if the Pr interval is more than 0.2 seconds.
6. Qrs involved Morphology. This is not so easy to interpret. However, stepwise appraisal can be helpful. The following are the things to consider:
- period should be in the middle of 0.08 - 0.10 seconds (or 2 - 2.5 boxes) only.
- proximity of Q waves (a Q wave should be greater than one box wide).
7. St Segment Morphology. This can decide whether ischemia or infarction is present. In general, ischemia is indicated with a depressed St segment while an elevated St segment confirms that there is infarction.
8. T Wave Morphology. T waves ordinarily point to the same direction as the Qrs's largest deflection. Changes in the T waves can be commonly linked with ischemia, hyperkalemia, and hypokalemia.
9. U Wave Morphology. The proximity of U waves may indicate hypokalemia.
10. Qtc Interval. With quinidine toxicity, Qtc interval is lengthened. It is shortened with hypocalcemia.
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