Telemetry Med Surg Exam 3
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Telemetry Med Surg Exam 3
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Telemetry Med Surg Exam 3 1. Sinus Node (SA Node): - The natural pacemaker of the heart. Its cell membrane properties cause it to spontaneously depolarize, generating impulses at a rate of 60-100 times per minute. 2. Atrioventricular Node (AV Node): - Acts as a resistor, slowing down the electrical impulse from the atria to allow for complete atrial contraction before initiating ventricular contraction. It serves as a backup pacemaker if the SA node fails, pacing at a rate of 40-60 tim...
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