ABRET Final Exam - 1. In normal patients, frontal and anterior ele...

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• In normal patients, frontal and anterior electrodes may record , indicat ing the

onset of drowsiness

Answer: FIRDA

• Number of distinct neurological diseases

Answer: less than 700 (368)

• Why is it important to ask a seizure patient if they had any sensation that warned

them a seizure was about to happen?Answer: because an "aura" may indicate a focal onset and the type of aura can indicate the area in which the focus is located

• A neurotransmitter associated with EPSP is...

Answer: glutamate

• Transverse Bipolar

Answer: Give the name for montage B

• When monitoring a tremor, the best electrode locations are?

Answer: One active electrode over the tremmoring body part and one electrode on a part of the body that is not tremoring and at least cm away from the active electrode

• Sometimes movements are the direct result of paroxysmal discharges. Which of

the movements listed are likely caused by paroxysmal discharge?

Answer: - Myoclonic jerk

• After application of electrodes, the impedances of every electrode should be

measured. Impedances

Answer: above 5000 ohms should be reduced by adding elec trolyte paste or

replacing the electrode

• the pituitary gland

Answer: produces LH (Luteinizing Hormone)

• Left frontal focal onset with rapid secondary generalization

Answer: This illustration displays

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• A rhythmic photoelectric discharge appears during photic stimulation at the F7

to Fp1, and Fp2 to F8 derivations but not at the Fp1-Fp2 derivation. When the Fp1 electrode is covered it disappears at the F7 to Fp1 derivation and appears at the Fp1-Fp2 derivation and continues at the Fp2 to F8 derivation. Why did Fp1 to Fp2 suddenly begin to record the photoelectric artifact?

Answer: Prior to covering the Fp1 electrode both electrodes in the Fp1-Fp2

derivations were recording the artifact equally, and the photoelectric artifact was cancelled due to CMR

• The side of the head with the external signs of injury is always the same as the

side of the brain with injury after traumatic blow to the head Answer: False - sometimes a blow to the head results in contra coupe injury to the brain on the opposite side

• The layer of skin affecting the transmission of the EEG signal from skin to the

electrode is called

Answer: stratum corneum

• Generated by voltages present in the retina when bright light is introduced-

Answer: ERG test - measures the electrical activity generated by neural and non- neural cells in the retina - used to detect abnormal retina functions

• SSPE (Subacute Sclerosing Panencephalitis)

Answer: An EEG recording showing periodic long interval diffuse discharges

recurring at intervals of 4-15 seconds in a child or adolescent with cognitive disturbances, irritability, myoclonic jerks, seizure and personality changes

• Sleep spindles

Answer: begin to be seen in rudimentary form at age 4 months

• Agnosia and apraxia are common symptoms seen in

disease

Answer: - Alzheimer's

• Common vehicle transmission of infection is caused by

Answer: contaminated food, water, medication or equipment

• These evoke potentials are best suited for Topographic Brain Mapping

Answer: - Long and Short Latency BAEP

• A current of 10-20 mA will cause muscles to contract to the point that the

person is unable to let go

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