CNIM - EEG Questions with Correct Answers
Chassis leakage
less than 100uA
Max leakage current (to the patient)
less than 10uA
differential input impedance
100Mohms
Common Mode Rejection
10,000:1 or 80dB
Minimum Bandpass
0.1-15,000Hz
Horizontal Resolution
<20uS/data point (sampling rate > 50,000)
Vertical Resolution
a minimum of 8 bits
Ground System
1kohm at 60Hz must measure less than 20mV
Obligate Waveform for PTN SEPs
LP, N34, P37
Obligate peak generators (PTN)
Chassis leakage
less than 100uA
Max leakage current (to the patient)
less than 10uA
differential input impedance
100Mohms
Common Mode Rejection
10,000:1 or 80dB
Minimum Bandpass
0.1-15,000Hz
Horizontal Resolution
<20uS/data point (sampling rate > 50,000)
Vertical Resolution
a minimum of 8 bits
Ground System
1kohm at 60Hz must measure less than 20mV
Obligate Waveform for PTN SEPs
LP, N34, P37
Obligate peak generators (PTN)