What dietary restriction should a client follow before an EEG?

The correct response is centered around the importance of eliminating caffeine prior to an EEG. Caffeine is a central nervous system stimulant that can affect brain activity and interfere with the test results. By abstaining from caffeine for 24 hours before the EEG, the client helps ensure that the readings are more reflective of their baseline brain activity, providing clearer and more accurate results for analysis.

In this context, consuming caffeine could lead to heightened brain activity or even abnormal patterns that might mislead the interpretation of the EEG. This is why healthcare providers emphasize the need to avoid caffeine leading up to the test.

While the suggestions surrounding light snacks or alcohol have their own significance in general health and wellness, neither directly pertains to preparing for an EEG. Light snacks two hours prior might not have a significant impact on the test results, and while avoiding alcohol can be beneficial for many tests, the particular focus before an EEG is on the effects of stimulants like caffeine.