Interpreting Heart Rhythm Strips. Atrial flutter has an atrial rhythm that is regular but has an atrial rate of 250 to 400 beats minute. Regular heart rhythm if a patient has a regular heart rhythm their heart rate can be calculated using the following method. Alternately you can count the complexes on the rhythm strip which represents 10 seconds. This measures the voltage of the beat and is determined by how high the wave reaches as measured by each square vertically on the chart.
Count the number of large squares present within one r r interval. It has sawtooth appearance. Qrs complexes are uniform in shape but often irregular in rate. Take a moment to review the most common cardiac rhythms encountered in acls and pals. During a single heart beat several electrical events occur. Regular heart rhythm if a patient has a regular heart rhythm their heart rate can be calculated using the following method.
This measures the voltage of the beat and is determined by how high the wave reaches as measured by each square vertically on the chart.
Multiply that number by 6 to find the 60 second heart rate. 5 squares 5 mv and 2 5 squares 25 mv. How to calculate a heart rate on an ekg strip. Abnormal rhythms are called arrhythmia or sometimes dysrhythmia. Denotes a 6 second interval on ekg strip strip is marked by 3 or 6 second tick marks on the top or bottom of the graph paper count the number of qrs complexes occurring within the 6 second interval and then multiply that number by 10. Arrhythmia is an abnormally slow or fast heart rate or an irregular cardiac rhythm.