A17-year-old male is brought to your emergency department by his girlfriend. she states that he has been behaving strangely for the last three days, with rapidly fluctuating moods ranging from euphoric to irritable and paranoid. the patient states that he is fine, just a little nervous about an upcoming test in school. his pulse is 126 beats per minute, bp 182/106, pupils are widely dilated, and he is diaphoretic. what is his most likely diagnosis?

I'd need my criteria for that, but, I'd have to say a over-stress reaction, maybe combination of a physical presence of something. Because his bpm (heart rate) is tachycardic (fast), which is dangerous for his age. A physical presence I am thinking is since  he is diaphoretic could be on some sort of drugs. What also leads me to believe that is his pulis are widely dilated and stress rarely causes that. 

I will have to finish answering this later? Am really busy. 

Where are the options?