Sinus arrhythmia is a result of the abnormal flow of the electrical system of the heart.
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Q76: The SA node stimulates both atria to
Q77: After electrical stimulation the ventricles contract, emptying
Q78: The augmented leads, which include aVR and
Q79: The skin is an excellent conductor of
Q80: The standard speed for an ECG recording
Q82: PACs may be recorded in patients who
Q83: An abrasive device must be applied to
Q84: PVCs are recorded when the ventricles depolarize
Q85: A cardiac event monitor must be worn
Q86: The QRS complex shows as a positive
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