REVISION ONE

What is the main role of neurotechnology (in computer) for Electroencephalography (EEG) recording?

• To display patient personal data only

• To create artificial brain waves for testing

• To process a clear brain signals through averaging

• To replace the need for electrodes in signal recording

A neurotechnologist is performing an EEG to assess for Electrocerebral Inactivity (ECI) in a comatose patient. Which of the following best applies proper technique to ensure accurate ECI determination?

• Use a high-frequency filter set at 70 Hz to enhance background activity

• Apply stimulation every 5 minutes to maintain brain responsiveness

• Record with inter-electrode distances less than 10 cm to increase sensitivity

• Maintain sensitivity at 2 μV/mm and confirm no cerebral activity over a 30-minute period

In video EEG telemetry, a patient exhibits repetitive motor activity. what should the neurotechnologist prioritize?

• Reduce sensitivity settings to minimize background noise

• Increase the high-frequency filter to reduce motion artifact

• Pause the EEG recording and assess the patient off-camera

• Annotate the event, verify synchronization of EEG and video

Which principle of EEG digitalization is being used in the following situation?

 

Situation:

The technician reduces the time base to 10 mm/sec to get a clearer view of slower brain wave activity in a patient with suspected brain damage.

• Sensitivity setting

• Impedance control

• Time base adjustment

• Sampling rate adjustment

A patient with suspected temporal lobe seizures is undergoing EEG monitoring. The technician needs to choose the best montage for detecting localized seizure activity in the temporal regions. Which montage should be selected?

• Circumferential montage with electrodes placed around the scal

• Referential montage with an electrode over the contralateral mastoid

• Bipolar montage with electrodes placed on the frontal and parietal regions

• Longitudinal bipolar montage with electrodes placed along the temporal regions

In an EEG of a patient with a history of generalized seizures, the technician notes high-amplitude, slow delta waves that are seen bilaterally, with synchronous bursts, and occasionally interrupted by sharp wave complexes. Which classification best fits this pattern?

• Alpha coma activity

• Spike-and-wave complexes

• Generalized paroxysmal delta activity

• Periodic lateralized epileptiform discharges (PLEDs)

In a patient with damage to the thalamus, which of the following is most likely to be seen in their EEG?

• Generalized sharp waves throughout the cortex.

• Increased beta waves due to cortical disinhibition.

• High-amplitude delta waves with loss of alpha rhythm.

• Disorganized, low-frequency activity with no clear pattern.

A patient's EEG shows abnormal background slowing and loss of reactivity to stimuli. The patient is unresponsive, with preserved brainstem reflexes. What does this suggest about the role of brainstem tracts and nuclei in the EEG findings?

• The abnormal EEG is related to corticol dysfunction with preserved brainstem function

• The EEG changes are caused by cerebellar dysfunction, unrelated to brainstem connections

• EEG is abnormal because of isolated motor tract injury in the spinal cord, not involving the brainstem

• EEG changes are due to widespread brainstem damage affecting cranial nerves and spinal tracts

A neurotechnologist is performing a routine EEG on a patient using an average reference montage. The EEG reveals a pattern of generalized slow-wave activity across the brain. What is the main advantage of using an average reference montage in this scenario?

• It is ideal for detecting localized focal seizures

• It provides more precise lateralized brain activity

• It enhances the detection of bilateral brain abnormalities

• It minimizes background noise from peripheral brain regions

A 35-year-old patient with a history of seizures undergoes an EEG. The report shows intermittent sharp waves in the right frontal region, as well as slower background activity in the posterior regions. The report also notes spike and wave discharges occurring intermittently. Which of the following is the most likely interpretation of these EEG findings?

• The EEG shows normal activity, as sharp waves are common in healthy individuals

• The frontal sharp waves indicate a focal seizure focus, but the background activity is unrelated to the seizures

• The slower background activity is unrelated to the seizure disorder and does not require clinical consideration

• The spike and wave discharges indicate a possible generalized seizure disorder, while the frontal sharp waves suggest a focal onset