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Dysrhythmia - Research Paper Example
Pages 3 (753 words)
Name Professor: Course: Date: Dysrhythmia Physiology of cardiac functioning The circulatory system consists of the heart and the blood vessel. The function is to transport oxygen and nutrients to body cells and carry away metabolic byproducts. The cardiac functioning refers to the circulatory system operation…
Oxygenated blood from the lungs is pumped to the body cells, the blood returns to the heart devoid of oxygen and is pumped to the lungs for oxygenation. The process repeats itself several times without ever halting (Balachander & Rajagopal, 2011). Basic normal EKG waveform morphology The electrocardiogram (EKG) works as a voltmeter, using twelve leads (electrodes) placed on specific areas of the body. It basically records the electrical activity of the heart at the body surfaces. Ordinarily, the SA node depolarizes spontaneously, initiating an action impulse which swiftly propagates through the atria, leading to atria contraction, then proceeds to the AV node before getting to the Purkinje system to the ventricles (Stein, 2012). This leads to the ventricular contraction. The EKG consists of waves and complexes hence the wave form morphology. In a normal sinus rhythm, the waves and complexes include the P wave, PR segment, PR Interval, T wave, QRS Complex, QT Interval and the ST Segment. The waves and complexes work in a complex system that consequently measure electrical activity of the heart. At the onset is the P wave that lasts not more than 0.12 seconds, usually occasioned by the atria’s depolarization. The nature of the P wave is smooth and positive (Stein, 2012). ...
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