This ECG workbook supplies nurses and nursing scholars the chance to perform and excellent their rhythm interpretation talents on greater than six hundred lifelike ECG strips. Introductory textual content deals a refresher on cardiac anatomy and body structure and ECG basics—electrophysiology, waveforms, lead placement, and steps in interpretation. next chapters offer in-depth assurance of every kind of arrhythmia, pacemakers, and 12-lead ECGs, with ratings of perform strips in each one bankruptcy. A finished posttest gauges the power to interpret ECGs and distinguish between arrhythmia forms. The booklet comes with a laminated ruler and expense calculator that doubles as a bookmark.
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Additional resources for ECG Strip Ease: An Arrhythmia Interpretation Workbook
Using the same method, measure the distance between P waves (the P-P interval) to determine whether the atrial rhythm is regular or irregular. Caliper method Ⅵ Ⅵ Ⅵ Ⅵ Ⅵ 25 With the ECG on a flat surface, place one point of the calipers on the peak of the first R wave of two consecutive QRS complexes. Adjust the caliper legs so the other point is on the peak of the next R wave, as shown below. This distance is the R-R interval. Pivot the first point of the calipers toward the third R wave, and note whether it falls on the peak of that wave.
Estimate the ventricular rate the same way, using the R wave. ) Calculating heart rate This table can help make the sequencing method of determining heart rate more precise. After counting the number of boxes between the R waves, use this table to find the rate. For example, if you count 20 small blocks, or 4 large blocks, the rate would be 75 beats/minute. To calculate the atrial rate, use the same method with P waves instead of R waves. Rapid estimation This rapid-rate calculation is also called the countdown method.
ECG paper is marked in increments of 3 seconds, or 15 large boxes. To calculate the atrial rate, obtain a 6-second strip, count the number of P waves on it, and multiply by 10. Ten 6-second strips equal 1 minute. Calculate ventricular rate the same way, using the R waves. Ⅵ 1,500 method: If the heart rhythm is regular, use the second method—the 1,500 method, so named because 1,500 small squares equal 1 minute. Count the number of small squares between identical points on two consecutive P waves, and then divide 1,500 by that number to get the atrial rate.