Domain 2

Instrumentation and Technical Principles

Apply amplifier, filter, sampling and electrical-safety principles.

4questionsExam mode

Question 1 of 4

During biocalibration, both EOG channels deflect in the same direction when the patient looks left and right. What is the best first action?

A.Increase EEG sensitivityB.Apply the notch filterC.Replace respiratory effort beltsD.Check EOG derivations and electrode connections

Question 2 of 4

What is the primary effect of an excessively low high-frequency filter setting on an EMG channel?

A.It amplifies direct current driftB.It attenuates faster muscle activityC.It increases sampling frequencyD.It reverses waveform polarity

Question 3 of 4

Which change best reduces the risk of aliasing when recording a rapidly changing signal?

A.Increase electrode impedanceB.Lower display sensitivityC.Reverse the input polarityD.Use an adequate sampling rate

Question 4 of 4

A differential amplifier displays the difference between which signals?

A.The impedance of two electrodesB.The voltages at its two inputsC.The patient and earth ground onlyD.The highest and lowest filter settings

Reference framework

These are independently written educational questions aligned to the public BRPT blueprint and professional technical references. Always use the current official scoring manual, laboratory policy and clinician orders in practice.