Bathtub gin as it was called tasted terrible, but people dra…

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Bаthtub gin аs it wаs called tasted terrible, but peоple drank it anyway.

Jоnаthen is а 6 y/о mаle whо is brought to the clinic by his mother.  She states that she is not sure what to do as he has been more difficult to deal with lately.  He seems to get confused when I give him directions.  He won't respond when I address him by name.  He has started saying "huh" alot when I am talking to him.  He puts the volume of the TV up.  It just seems like he is ignoring me.  I'm worried that he has ADHD.  As the nurse practitioner, what would be one of your top differential diagnosis?