A child with Attention Deficit Hyperactivity Disorder (ADHD…

 A child with Attention Deficit Hyperactivity Disorder (ADHD) is prescribed 5 mg of methylphenidate (Ritalin) to be taken in divided doses. The child takes the first 5 mg dose at home before school at 8 AM. Considering the pharmacokinetics of methylphenidate, which behavior might the school nurse expect to observe around noontime?