Questions Electrocardiogranm 1. WhatcausesthePwaveoftheECG? 2. What causes the Q

Question

Questions Electrocardiogranm 1. WhatcausesthePwaveoftheECG? 2. What causes the QRS complex of the ECG? 3. What causes the T wave of the ECG? 4. What is the atrioventricular node? 5. What causes the AV delay? 6. What causes sinus arrhythmia? Chart Area 7. What causes premature ventricular contractions? 8. What is the clinical significance of sinus arrhythmias and premature ventricular contractions? 9. What is your diagnosis of the following electrocardiogram? Assume a chart speed of 25 mm/sec (one small block- 1 mm)

Explanation / Answer

1. P wave represents atrial depolarization.

2. QRS complex represents depolarization of right and left ventricles.

3. T wave represents repolarization of ventricles.

4. AV node is electrical relay station between atria ad ventricles.

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