How to count ekg strip

Using the normal heart rate should have large blocks between R-waves. More than 5 large blocks is a bradycardia and fewer than 3 blocks is a tachycardia. Well, then you know the heart rate is somewhere between 75 and ! Heart rate: 50 6 large blocks: 50 Here there are 6 large blocks in between R-waves for an estimated heart rate of 50 BPM. Heart rate: 60 5 large blocks: 60 Here there are 5 large blocks in between R-waves for an estimated heart rate of 60 BPM. Heart rate: 75 4 large blocks: 75 Here there are 4 large blocks in between R-waves for an estimated heart rate of 75 BPM.

Abnormal: A Q wave is significant if it is greater than 1 box wide 0. Represents: ventricular repolarization Normal: In general, T waves are in the same direction as the largest deflection of the QRS normally the R wave. Abnormal: T wave changes can be primary or secondary. T wave changes caused by bundle branch block or ventricular hypertrophy are secondary.

Interpretation of the ECG must be done in a logical sequence in order to best serve the patient. If you are responsible for a patient who is being monitored, you want to be able to recognize any arrhythmia that may be life-threatening. You want to be able to do that as fast as possible; it may save the life of your patient. As you read and study these steps, remember that they may not apply to every patient in every situation. However, you should always be deliberate and methodical when you interpret the ECG.