Which of the following is used to detect Ventricular Fibrillation?(a) Shape of the QRS complexes(b) Frequency domain analysis(c) Timing sequence of QRS complexes(d) Difference of the R-R intervalThe question was posed to me in my homework.This intriguing question comes from Clinical Data Interchange/Exchange Standards topic in section Telemedicine Technology of Biomedical Instrumentation

Which of the following is used to detect Ventricular Fibrillation?(a)

1.	Which of the following is used to detect Ventricular Fibrillation?(a) Shape of the QRS complexes(b) Frequency domain analysis(c) Timing sequence of QRS complexes(d) Difference of the R-R intervalThe question was posed to me in my homework.This intriguing question comes from Clinical Data Interchange/Exchange Standards topic in section Telemedicine Technology of Biomedical Instrumentation
Answer» The correct choice is (b) Frequency DOMAIN analysis Explanation: Ventricular fibrillation is USUALLY DETECTED by frequency domain analysis.It can be distinguished from noise by appropriately designing band-pass filters.The system is characterized as a narrow-band, LOW frequency signal with energy concentrated in a band around 5-6 HZ.

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