Drug misuse, intoxication and withdrawal Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 24-year old man is brought to the emergency department by his partner for evaluation of visual hallucinations. The patient states he can see “fire moving through the air” and that sounds “appear brighter.” The patient tells the physician he believes he is “having a bad trip because of a drug he took.” He has no history of psychiatric illnesses. Temperature is 37.1 °C (98.8 °F), respirations are 15/minute, pulse is 92/minute, and blood pressure is 130/85 mmHg. The patient is oriented to place and time. Physical examination demonstrates mydriasis. Urine toxicology is negative. Which of the following substances is most likely responsible for this patient’s presentation?

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