Chapter 95 Polysomnogram Sleep Studies
Polysomnography refers to the continuous and simultaneous monitoring and recording of various physiologic parameters of sleep. In order to meet international standards, measured parameters must include one electroencephalography (EEG) channel, two electrooculogram (EOG) channels to measure eye movement, and one electromyography (EMG) channel to record rapid eye movement (REM) sleep.
Other parameters often monitored include additional EEG and EMG channels, airflow, electrocardiography, pulse oximetry, and respiratory effort; and sound recordings of snoring are often made. The data are reviewed and interpreted by a practitioner specially trained in sleep study and polysomnography interpretation.
A sleep study or polysomnography is indicated for children with sleep-related breathing disorders, neuromuscular disease, or sleep-related symptoms. Current evidence suggests that at least 2 nights of study may provide more accurate patient data.
NURSING INTERVENTIONS
1. Explain procedure to child and parents before it is performed.
2. Instruct child and parents to maintain regular sleep-wake rhythm and to avoid strenuous activity on the day of the study.
3. Instruct parents to hold medications per physician direction, especially if they may stimulate or sedate child.
4. Provide supportive environment with favorite toy, pillow, or music to facilitate child’s sleep.
Armon C, Roy A, Nowack WJ. Polysomnography: Overview and clinical application eMedicine. (serial online): www.eMedicine.com/neuro/topic566.htm, 2006. Accessed March 14
Montgomery-Downs HE, O’Brian LM, Gozal D. Polysomnographic characteristics in normal preschool and early school-aged children. [(serial online):] .Pediatrics, 2006. http://pediatrics.aappublications.org/cgi/reprint/117/3/741. Accessed March 14
