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What is the value of the refractory period from the previously identified QRS complex?

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What is the value of the refractory period from the previously identified QRS complex?

(a) 200 ms

(b) 198 ms

(c) 192 ms

(d) 215 ms

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This intriguing question originated from Bedside Patient Monitoring System topic in portion Patient Monitoring System of Biomedical Instrumentation

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Correct answer is (c) 192 ms

Best explanation: The QRs detector checks the QRS detection signal for the presence of the peak of an R wave. Search begins after an absolute refractory period from the previously identified QRS complex. The value used for the refractory period is 192 ms. This helps to prevent a T wave from being identified as an R wave.

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