II.O Normal / abnormal neonatal EEG Flashcards
At what conceptional age is a delta brush pattern primarily seen?
A) 40 to 44 weeks
B) 32 to 34 weeks
C) 46 to 48 weeks
D) Before 24 weeks
32 to 34 weeks
Right temporal sharp transients recorded during wakefulness in a 38 week conceptual age infant:
A) is typical for neonatal Herpes encephalitis
B) is a non-specific indicator of right temporal dysfunction
C) is normal for age
D) is an interictal epileptiform abnormality which correlates with focal seizures
is a non-specific indicator of right temporal dysfunction
This neonate pattern is associated with interburst intervals that are less than 25 uV in amplitude and are expected up to 34 weeks postmenstrual age.
A) Enconches Frontales
B) Trace’ Discontinu
C) Delta Brush
D) Trace Alternant
Trace’ Discontinu
Delta brushes are seen in what type of patients?
A) Full-term infants
B) Premature infants
C) Adults
D) Pediatrics
Premature infants
Temporal theta burst is an EEG feature seen in which neonatal age group?
A) 24-28 weeks gestation
B) 34-37 weeks gestation
C) 38-44 weeks gestation
D) 44-52 weeks gestation
24-28 weeks gestation
A neonatal EEG showing eye movements, body twitches, absent chin myogram, and irregular respirations confirms the patient is in what state?
A) Quiet sleep
B) Active sleep
C) Non-REM
D) Awake
Active sleep
The pattern which appears at the youngest postmenstrual age (PMA) is?
A) delta brushes
B) frontal rhythmic delta (“anterior slow dyrhythmia”)
C) trace alternant
D) frontal sharp transients (Encoches Frontales)
delta brushes
At what age do encoches frontales first appear?
A) 4 months
B) 34-37 weeks CA
C) 29-31 weeks CA
D) 34-37 weeks GA
34-37 weeks CA (not GA)
TRACE ALTERNANT
A) 25 weeks conceptual age
B) 55 weeks conceptual age
C) 35 weeks conceptual age
D) 45 weeks conceptual age
35 weeks conceptual age
In a 38-week conceptional age infant, which of the following would be considered abnormal?
A) Frontal sharp transients
B) Trace alternant
C) Left hemisphere voltage suppression
D) Delta brushes
Left hemisphere voltage suppression
In a normal 28-week pre-term infant, the EEG should show what type of pattern?
A) Hypnagogic hypersynchrony
B) Trace’ discontinu
C) Vertex waves and sleep spindles
D) Hypsarrhythmia
Trace’ discontinu
A pattern of 1 to 1.5 Hz activity with superimposed 8 to 20 Hz activity seen in neonates is called
A) paroxysmal temporal theta
B) frontal sharp transients
C) delta brush
D) anterior slow dysrhythmia
delta brush
In a 27 week gestational age neonate, where are delta brushes expected to be seen MOST prominently?
A) Occipital
B) Frontal
C) Delta brushes are not seen at 27 weeks gestation
D) Central
Central
Which of the following is most likely to be the finding in a full term neonate with seizures?
A) Focal spikes and sharp waves
B) Trace’/Discontinu
C) Generalized spike and sharp waves
D) Asymmetrical beta
Focal spike and sharp waves
At what conceptual age would you expect Delta brushes to no longer be present?
A) 38 CA
B) 44 CA
C) 42 CA
D) 40 CA
44 CA
Sleep stages in a term newborn infant are
A) abnormal if discontinuous
B) slow to change from stage to stage
C) characterized by rapid onset active sleep
D) in same sequence as adults
characterized by rapid onset active sleep.
Which of the following is a normal EEG pattern found at about 32 weeks conceptional age?
A) Delta brush
B) Hypnagogic hypersynchrony
C) Sleep spindle
D) Vertex wave
Delta brush
Delta brushes are seen in
A) awake neonate
B) neonate, quiet sleep
C) full-term infant, REM sleep
D) full-term infant, active sleep
neonate, quiet sleep.
At the onset of sleep, a 40-week conceptional age infant is most likely to enter into which of the following states of sleep?
A) Stage N1
B) Quiet
C) Active
D) Stage N2
Active
Which of the following is a random disorganized pattern characterized by extremely high voltage activity with slow waves and multifocal spikes and is seen with infantile spasms?
A) Vertex waves
B) Posterior slow waves of youth
C) K-complexes
D) Hypsarrhythmia
Hypsarrhythmia
If the EEG of a term newborn with asphyxia shows non-reactivity and periods of severe attenuation with bursts of activity every 10 to 20 seconds, which of the following is MOST likely indicated?
A) Severe cortical injury due to hypoxic-ischemic encephalopathy
B) Normal quiet sleep pattern for that age
C) Medication effects due to therapeutic loading with phenobarbital
D) Transient effects which will probably normalize in two weeks
Severe cortical injury due to hypoxic-ischemic encephalopathy
