ACNS guidelines (second half is various facts) Questions With Complete Solutions

The minimal amount of EEG channels is correct answer: 16 The type of current required for EEG equipment is correct answer: Alternating Current Filter settings should be correct answer: no higher than 1 Hz and no lower than 70 Hz The best materials that electrodes are made of is correct answer: Silver Chloride, Gold Impedances must be correct answer: below 10K Ohms and balanced The appropriate calibration of each EEG should be at least correct answer: 10 seconds or until a stable recording is reached The sensitivity of the EEG should be between correct answer: 5 and 10 microvolts per millimeter Time constant should be at least correct answer: .16 seconds The baseline minimum EEG recording should be correct answer: 20 minutes The EEG recordings should include periods of when the eyes are correct answer: opened and closed Photic stimulation should be performed in a room with correct answer: dimmed lighting Photic stimulation should be placed at least correct answer: 30 centimeters from the patient's face Photic stimulation should be performed before Hyperventilation or at least correct answer: Three minutes afterwards What are the Hyperventilation contrindications? correct answer: recent intracranial hemorrhage, significant cardiopulmonary disease, sickle cell disease, or patient unwillingness to cooperate Hyperventilation should be performed for at least correct answer: 3 minutes and recorded for 1 minute afterwards In a comatose patient, these stimuli should be applied and noted correct answer: visual, auditory and somatosensory responses FC stands for correct answer: Frontocentral positions FT stands for correct answer: Frontotemporal positions TP stands for correct answer: Temporal-posterior