What are the 7 steps to interpret an ECG?
What are the 7 steps to interpret an ECG?
Topic Outline
- Step 1: Rate.
- Step 2: Rhythm.
- Step 3: Axis.
- Step 4: Intervals.
- Step 5: P wave.
- Step 6: QRS complex.
- Step 7: ST segment-T wave.
- Step 8: Overall interpretation.
What are the principles of electrocardiography?
The basic principle of the ECG is that stimulation of a muscle alters the electrical potential of the muscle fibres. Cardiac cells, unlike other cells, have a property known as automaticity, which is the capacity to spontaneously initiate impulses.
How do you read an ECG in 10 steps?
ECG interpretation: 10 steps for rhythm identification
- Is the ECG rhythm regular or irregular?
- Calculate the heart rate.
- Find the P waves.
- Measure the PR interval.
- Measure the QRS segment.
- Observe the T wave.
- Note any ectopic beats.
- Determine the origin.
How do you analyze an ECG report?
Heart rate estimation from the ECG Standard ECG paper allows an approximate estimation of the heart rate (HR) from an ECG recording. Each second of time is represented by 250 mm (5 large squares) along the horizontal axis. So if the number of large squares between each QRS complex is: 5 – the HR is 60 beats per minute.
What type of electrodes are used in ECG?
Two types of electrodes in common use are a flat paper-thin sticker and a self-adhesive circular pad. The former are typically used in a single ECG recording while the latter are for continuous recordings as they stick longer.
How many electrodes are used in ECG?
Although it is called a 12-lead ECG, it uses only 10 electrodes. Certain electrodes are part of two pairs and thus provide two leads. Electrodes typically are self-adhesive pads with a conducting gel in the centre. The electrodes snap onto the cables connected to the electrocardiograph or heart monitor.
What is normal ECG report?
The normal range of the ECG differed between men and women: heart rate 49 to 100 bpm vs. 55 to 108 bpm, P wave duration 81 to 130 ms vs. 84 to 130 ms, PR interval 119 to 210 ms vs. 120 to 202 ms, QRS duration 74 to 110 ms vs.
What are normal ECG values?
What is normal ECG rate?
An electrocardiogram (ECG) test measures the electrical activity of the heart. A normal resting heart rate is 60 to 100 beats per minute.