Evoked Potential
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To display median nerve SSEP resonse as an upward deflection, which of the following must be known?
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Waveform polarity and latency of the response
Waveform polarity and polarity convention of the amplifier inputs
Polarity convention of amplifier inputs and amplitude of the response
Latency of the response and polarity convention of the amplifier inputs
If an evoked potential has a voltage of 10 uV and the associated noise has a voltage of 50 uV, what is the signal-to-noise ratio after 100 averaged responses?
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1:1
1:2
2:1
5:1
Which of the following devices measures electrode resistance?
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Ammeter
Ohmmeter
Voltmeter
Photometer
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