A 27-year-old hospital worker has access to the pharmacy when no other workers are around. He is able to find morphine and inject himself with supratherapeutic dose of morphine. He then collapses and is found dead by coworkers 24 h later. What is the most likely explanation for his death?

A 27-year-old hospital worker has access to the pharmacy when no other workers are around. He is able to find morphine and inject himself with supratherapeutic dose of morphine. He then collapses and is found dead by coworkers 24 h later. What is the most likely explanation for his death?

A 21-year-old male college student complains of difficulty falling asleep at night. He asks if there is anything “mild” he can take to help him get to sleep. Which of the following hypnotics mimics an endogenous hormone?

Which of the following statements is correct about the normal functioning of the nicotinic receptors in a 19-year-old man college student athlete from the college baseball team?

A 56-year-old man who is hospitalized for viral encephalitis develops pill-rolling tremors of the hands and cogwheel rigidity. He is thought to have parkinsonian symptoms that developed because of an underlying secondary cause. Which of the following is the most likely etiology of this condition?

A 15-year-old boy presents to clinic for follow-up for his tonic-clonic seizures. He reports that he has not had a seizure in the past 6 months. However, he has been more tired recently and is unsure why. A complete blood count is performed and shows megaloblastic anemia. The physician told the patient that this was most likely a side effect of his antiseizure medication. What is the most likely medication he was taking?