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 21-year-old man is brought to the emergency department for evaluation of a first-time seizure. The patient attended the party with three of his friends who report that he used a drug to help him “be more social.” His friends state the patient seemed to be drinking “copious amounts of water” at the party. His temperature is 38.5C (101.3F), pulse is 110/minute, respirations are 16/minute, and blood pressure is 150/90 mmHg. On physical examination the man is disoriented, the pupils are mydriatic, and he appears diaphoretic. Clonus is appreciated in the lower extremities bilaterally. Laboratory evaluation reveals hyponatremia. Which of the following agents is most likely responsible for this patient’s clinical presentation?

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