R Wave Essay

717 Words 3 Pages
Once the P wave initiates the signal, the R wave is the first upward deflection after that. Anyone can easily recognize it on the electrocardiogram (ECG). That is because it is the largest one out of all the waveforms. The R wave corresponds to the depolarization of the left and right ventricles. It does not need the Q wave to be the first deflection at all. Also, note that there can be multiple R waves. Throughout the paper, it will discuss all the wave functions, specifically the R wave, any abnormalities and how every waveform and parts of the body rely on one another to work properly. There are five waveforms: P wave, Q wave, R wave, S wave and T wave. The P wave is the SA node and it is the main starter of the electrical conduction …show more content…
As you are looking at the ECG sheet, you might notice something abnormal about the R wave, which can be a: poor R wave progression, “a person has a myocardial infarction (MI), normal variant, and/or incorrect lead placement” (Life in the Fast Lane Medical Blog). In the dominant R wave in V1 results in, “right bundle branch block (RBBB), cardiomyopathy, hypertrophic and dextrocardia” (Life in the Fast Lane Medical Blog). Another abnormality can be the dominant R wave aVR and that means there was an incorrect placement of the leads and an elevated ventricular tachycardia. When there is something unusual about the wave, it makes it hard for the heart to receive what it needs, in a timely matter. Because of the occlusion of the right bundle branch, the electrical depolarization must go through the left bundle branch and put the RBBB at rest, so it takes a while longer than it …show more content…
In regards to the waves, it gives a visual of how a person heart rate goes up and down and to look for any normal or abnormal heart rhythm. Since the P wave is the sinoatrial node, which is the pacemaker of the heart, it is essential that the must be working at all times to be able to send the signal to the atrioventricular node that sends signals to the QRS. When that occurs the right atrium is receiving blood from the superior and inferior vena cava to pushes blood to the ventricles and the ventricles pushes it towards the heart, so after it has been depolarized, the heart is now relaxed and that is where the T wave comes into play, it is repolarizing the heart. All of these waves have their different function in the cardiac conduction, but serves the same purpose, so without one doing its job all of the other parts will not work as it should. Conclusion
To conclude, all the waves are important not just the R wave. The R wave is the largest wave you’ll see on the electrocardiogram paper and represents the ventricular depolarization. There are some abnormalities that is seen when looking at the ECG such as, misplacement of the leads, prior myocardial infarction and the right bundle branch block will be seen on the sheet. All waves are relying on each other to get and keep the heart in control and if one thing is off it affects each and every one

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