P Wave Deflection

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 of the heart. This wave is the first thing that is seen on the ECG sheet and shows the atrial depolarization. The Q wave is the downward deflection following the P wave and sometimes it can be seen other times it cannot. …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