3.Y particularly when stressed. You perform an ECG, and observe the following wa
ID: 3516158 • Letter: 3
Question
3.Y particularly when stressed. You perform an ECG, and observe the following waveform: Your artificial valve patient from a previous homework complains of a perceived heart beat irregularity, a) What do you think is happening? Identify the normal and abnormal components of his ECG, and explain what could cause the abnormal component looks the way it does b) Speculate on possible origin of the arrhythmia. Could this be directly or indirectly related to your valve implant? If so, how? If not, why not?Explanation / Answer
Standard ECG contains P-wave that represents the electrical excitation or depolarisation of the atria, which leads to contraction of both the atria. QRS complex which represents the depolarisation of ventricles, which initiates the ventricular contraction. The contraction starts shortly after Q and marks the beginning of the systole. The T-wave represents the return of ventricles from excited to normal state i.e. repolarisation. The end of T-wave marks the end of systole.
In the above diagram QRS complex is completely inverted. In addition to this there is no sharp graph for T-wave and P-wave.
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