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Neonatal EEG

Learning parameters for neonatal EEG

QuestionAnswer
The state with eyes closed, irregular respiration, eye movements active sleep
The state with eyes closed, regular respirations, no eye movements quiet sleep
The discontinuity seen during quiet sleep in infants age 30 - 34 weeks is _____ trace discontinu
The discontinuity seen during quiet sleep in infants age 35-36 weeks is ___ trace alternant
Trace alternant is seen from __ to __ weeks conceptual age 35, 36
Trace discontinu is seen from __ to __ weeks conceptual age 30, 34
Trace discontinu is seen during this stage quiet sleep
Trace alternant is seen during this stage quiet sleep
The maximal normal interburst interval for a < 30 week CA neonate is __ seconds 30
The median interburst interval for a < 30 week CA neonate is __ seconds 10
The maximal normal interburst interval for a 31-33 week CA neonate is __ seconds 20
The maximal normal interburst interval for a 34-36 week CA neonate is __ seconds 10
The maximal normal interburst interval for a 37-40 week CA neonate is __ seconds 6
THe median normal interburst interval for a 37- 40 week CA infant is __ to __ seconds 2, 4
The normal amplitude for an interburst interval for a less than 35 weeks CA neonate is ___ ___ uV < 25
The normal amplitude for an interburst interval for a greater than 35 week CA neonate is __ __ uV > 25
Fragments of trace alternant may persist in quiet sleep up to __ weeks CA 44
In neonates, abnormalities are suggested if there is an asymmetry greater than __ : __ 2, 1
Bursts are defined a synchronous if they occur occur within ___ seconds of one another from left to right 1.5
Normal left to right burst synchrony in __ % in < 29 week CA neonates 100
Normal left to right burst synchrony in __ % in 31-32 week CA neonates 70
Normal left to right burst synchrony in __ % in > 37 week CA neonates 100
Voltage is considered abnormally low in full term > 43 week CA infants if it is less than __ - __ uV while awake or less than __ - __ uV in quiet sleep 5, 10, 10, 25
Normal neonatal EEGs become __ (more/less) continuous with stimulation more
Normal neonatal EEGs become __ (higher/lower) in ampliutde with stimulation lower
3 EEG patterns that are normal in 24-29 week CA neonates delta brush, monorhythmic occipital delta, rhythmic temporal and occipital delta
There is __ (more / less) monorhythmic occipital delta at 30 - 34 weeks than there is at 24-29 weeks less
There is __ (more / less) rhythmic temporal theta at 30 - 34 weeks than there is at 24-29 weeks more
The EEG at 24-29 weeks CA is: (A) Entirely continuous (B) Somewhat continuous during wakefulness & active sleep (C) Somewhat continuous during all stages (D) Entirely discontinuous D
The EEG at 30-34 weeks CA is: (A) Entirely continuous (B) Somewhat continuous during wakefulness & active sleep (C) Somewhat continuous during all stages (D) Entirely discontinuous B
The EEG at 30 - 34 weeks is totally discontinuous during ___ (stage(s)), and more continuous during ____ (stage(s)) quiet sleep, active sleep, wakefulness
The name for the completely continuous pattern seen during wakefulness and active sleep in patients beyond age 35 weeks CA Activite moyenne
Activite moyenne is seen beyond age __ weeks CA 35
The activity in neonates at 35 - 36 weeks during quiet sleep is __ (continuous / discontinuous) discontinuous
The name for the pattern associated with quiet sleep in 35-36 week CA neonates trace alternant
Beginning at week __ CA, the discontinuous activite moyenne is admixed with continuous slow wave sleep 37
The pattern seen in 37 - 40 week CA neonates during wakefulness and active sleep activite moyenne
Continuous slow wave sleep should replace trace alternant by __ weeks CA 44
Sleep spindles appear by __ - __ weeks CA 45, 46
AT 30 - 34 weeks, this is the state in which the most delta brushes are seen active sleep
Monorhythmic occipital delta activity peaks between __ and __ weeks and disappears by __ weeks 31, 33, 35
Rhythmic occipital theta activity peaks at age __ weeks and disappears by __ weeks 30,33
Rhythmic temporal theta activity peaks between __ and __ weeks 31, 33
Delta brushes are more prominent in active sleep up to age __ weeks, and more prominent in quiet sleep after age __ weeks CA 33, 34
This pattern refers to paroxysmal brief bursts of frontally dominant semirhythmic delta activity that may be sharply contoured anterior dysrhythmia
Anterior dysrhythmia is more common in: (A) Wakefulness (B) Active sleep (C) Quiet sleep (D) All sleep stages D
Marked, persistent asymmetry in the __, __ or __ of anterior dysrhythmia may indicate abnormalities amplitude, morphology, number
This phrase is used to describe the reduction of complex faster polyfrequency background EEG patterns; it does not necessarily imply low voltage, although many records will be low voltage (and discontinuous and nonreactive.) depressed and undifferentiated
High amplitude (>150 uV) broad biphasic frontal sharp waves (negative-positive) maximal bilaterally, synchronously encoches frontales
Encoches frontales first appears at week __ CA 34
Encoches frontales usually disappears about __ weeks after birth 4
The best state(s) to evaluate sharp waves active sleep, wakefulness
The EEG of Ohtahara syndrome contains periodic suppression burst during: (A) Active sleep (B) Quiet sleep (C) Wakefulness (D) All stages D
The EEG of early myoclonic encelopathy shows suppression-burst during: (A) Active sleep (B) Quiet sleep (C) Wakefulness (D) All stages C
The EEG of suppression burst in Ohtahara syndrome turns into hypsarrhythmia at: (A) 1-2 months (B) 3-6 months (C) 6-12 months (D) 12 - 24 months (E) Never B
The EEG of EME typically transitions from suppression burst to hypsarrhythmia at: (A) 1-2 months (B) 3-6 months (C) 6-12 months (D) 12 - 24 months (E) Never E
The EEG of agyria Fast rhythm
The EEG of hemimegalencephaly in infancy asymmetric suppression-burst
The EEG of Aicardi syndrome in infancy asymmetric suppression-burst
During ___ sleep, hypsarrhythmia may be associated with grouping of multifocal spikes, resulting in a periodic pattern NREM
Immediately after arousal from REM or NREM sleep, the EEG of hypsarrhythmia patients often shows __ pseudonormalization
Sleep spindles __ (are / are not) seen in hypsarrhythmia are
REM sleep in hypsarrhythmia is: (A) Absent (B) Reduced (C) Excessive B
Cerebral maturation begins in __ regions, before extending to the __ region and later the __ region central, occipital, frontal
Created by: schmittse