EEG Pediatric and Neonatal EEG 2

Question 1

At what age does the posterior dominant rhythm typically reach the adult alpha frequency range of 8 Hz?

Accepted Answer

3 years

Answer

6 months

Answer

1 year

Answer

8 years

Question 2

Tracé alternant is a normal EEG pattern seen in which population?

Accepted Answer

Healthy term neonates during quiet sleep

Answer

Adults during deep anesthesia

Answer

Adolescents during REM sleep

Answer

Premature neonates during active sleep

Question 3

What is the most important factor in interpreting a neonatal EEG?

Accepted Answer

The conceptional age (gestational age plus postnatal age) of the infant

Answer

The number of electrodes used

Answer

Whether the recording is digital or analog

Answer

The ambient room temperature during recording

Question 4

Which neonatal EEG pattern is considered highly abnormal and suggests severe encephalopathy?

Accepted Answer

Burst-suppression with interburst intervals showing isoelectric or near-isoelectric activity

Answer

Tracé alternant

Answer

Activité moyenne (continuous medium-voltage mixed pattern)

Answer

Delta brushes in the temporal regions

Question 5

Anterior dysrhythmia (frontal sharp transients) in a premature neonate at 34 weeks conceptional age is considered:

Accepted Answer

A normal developmental feature (encoches frontales) expected at this age

Answer

Always pathological requiring treatment

Answer

Evidence of frontal lobe seizure activity

Answer

An artifact from eye movements

Question 6

In pediatric EEG, the hyperventilation response in children differs from adults in that:

Accepted Answer

Children typically show a more prominent and prolonged buildup response with higher amplitude slowing

Answer

Children show no response to hyperventilation

Answer

Children develop beta activity instead of slowing

Answer

The response is identical to adults at all ages