When is an electroencephalogram typically performed?

An electroencephalogram (EEG) is a diagnostic tool specifically used to measure and record electrical activity of the brain. It is particularly valuable in the context of neurological assessment. The primary scenarios for performing an EEG include when a child exhibits seizures, as the test can help identify abnormal brain activity associated with epileptic episodes or other seizure disorders. Additionally, an EEG may be utilized to evaluate brain function in cases of suspected brain death, providing critical information about the integrity of brain activity.

The other contexts mentioned do not typically warrant an EEG's use. For routine health checks, there are no indications to perform an EEG, as it is not a standard test for assessing general health. While EEGs can monitor brain activity during specific surgeries, this is a specialized context and not the most common setting for their use. Similarly, while developmental delays are significant and concerning, they are usually assessed through other methods such as developmental screenings or neuropsychological evaluations rather than an EEG.