Laboratory Studies
No consistent irregularities in laboratory evaluation have been identified, and no additional work-up is required in a classic sleep terror presentation.
Imaging Studies
No specific imaging is indicated with normal development and no focal neurological abnormalities. If trauma during an episode has been sustained, appropriate imaging should be sought to evaluate the injury.
Other Tests
A sleep diary may help families identify particular triggers for sleep terror events. Co-morbidities should be investigated independent of their sleep terror association.
Further evaluation and intervention may be required for individuals with significant daytime somnolence, violent behavior during the episodes that threaten harm to self or others, or in situations where the sleep terrors generate severe distress to family members. Polysomnography is useful if a respiratory disturbance is suspected. When nocturnal seizures are a possibility, a routine EEG or sleep-deprived EEG may be helpful.[11]
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