Count the number of QRS complexes in one continuous lead where cardiac activity was monitored for the whole 10 seconds or in contiguous leads encompassing 10 seconds of cardiac activity. Multiply this number by 6 (10 x 6 = 60 seconds = 1 minute) to obtain the number of heartbeats per minute or the average heart rate.
The EKG can be used to calculate heart rate. Photo Credit Heartbeat image by JASON WINTER from Fotolia.com. The electrocardiogram (EKG) is a tool that your physician can use to gauge how your heart is working without actually seeing your heart. Step 1. Attach the individual EKG wires to electrodes, and adhere them to their respective positions on the person's body. The white lead, or the one marked RA, should be adhered to the right arm. The black lead, or the one marked LA, should be adhered to the left arm. 1 When the rhythm is regular, the heart rate is 300 divided by the number of large squares between the QRS complexes. 2  For example, if there are 4 large squares between regular QRS complexes, the heart rate is 75 (300/4=75). 3  The second method can be used with an irregular rhythm to estimate the rate. EKG paper is a grid where time is measured along the horizontal axis. 1  Each small square is 1 mm in length and represents 0.04 seconds. 2  Each larger square is 5 mm in length and represents 0.2 seconds Normal resting heart rates range from 60–100 bpm. Bradycardia is defined as a resting heart rate below 60 bpm. However, heart rates from 50 to 60 bpm are common among healthy people and do not necessarily require special attention. The normal resting adult human heart rate ranges from 60–100 bpm. Tachycardia is a fast heart rate, defined as above 100 bpm at rest. Bradycardia is a slow heart rate, defined as below 60 bpm at rest. During sleep a slow heartbeat with rates around 40–50 BPM is common and is considered normal An electrocardiogram (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart 's electrical activity as line tracings on paper. The spikes and dips in the tracings are called waves. The heart is a muscular pump made up of four chambers.  4. Alternatively, use the following formula to calculate your heart rate: 300 divided by the number of boxes between the 2 peaks. For example, with 3 boxes, 300 divided by 3 = 100 BPM. 1  For example, if you counted 4 big boxes between peaks you have a heart rate of 75 beats per minute (300/4)= 75 How to Calculate Heart Rate from ECG. EKG is a trans-thoracic interpretation of the electrical activity of the heart over a period of time, as detected by electrodes attached to the surface of the skin and recorded by a device external to the body. Alternatively, use the following formula to calculate your heart rate: 300 divided by the number of boxes between the 2 peaks. For example, with 3 boxes, 300 divided by 3 = 100 BPM. Count the number of QRS complexes in one continuous lead where cardiac activity was monitored for the whole 10 seconds or in contiguous leads encompassing 10 seconds of cardiac activity. Multiply this number by 6 (10 x 6 = 60 seconds = 1 minute) to obtain the number of heartbeats per minute or the average heart rate. How to determine the heart rate when it is lower than 50 beats per minute (regular rhythm): 1  Count the number of large squares between two successive R waves. 2  Divide 300 by the number of large squares obtained in #1. 3  The quotient is the heart rate (cardiac cycles per minute or heart beat per minute). Use the heart rate calipers to determine if the heart rate is regular or irregular by placing the needle tips on two contiguous R-waves. Move the calipers so that the first needle is on the second R-wave, and the second needle is on the next contiguous R-wave. Step 1. Attach the individual EKG wires to electrodes, and adhere them to their respective positions on the person's body. The white lead, or the one marked RA, should be adhered to the right arm. The black lead, or the one marked LA, should be adhered to the left arm.
http://www.livestrong.com/article/217879-how-to-calculate-heart-rate-ekg/ http://www.rnceus.com/ekg/ekghowto.html https://en.wikipedia.org/wiki/Heart_rate http://www.webmd.com/heart-disease/electrocardiogram http://www.wikihow.com/Calculate-Heart-Rate-from-ECG http://www.wikihow.com/Calculate-Heart-Rate-from-ECG http://www.ekginterpretation.net/ http://www.livestrong.com/article/217879-how-to-calculate-heart-rate-ekg/
how to measure resting heart rate on ekg