A 40-year-old man with chronic anxiety and alcohol abuse has difficulty getting to sleep. He has no other medical problems. Physical examination of the heart, lungs, and abdomen are within normal limits. Which of the following is the best agent to help this patient get to sleep?

A 40-year-old man with chronic anxiety and alcohol abuse has difficulty getting to sleep. He has no other medical problems. Physical examination of the heart, lungs, and abdomen are within normal limits. Which of the following is the best agent to help this patient get to sleep?

A mother brings her unconscious 14-year-old son to the emergency department. He was found unresponsive in his bedroom. His respirations are 10 breaths per minute. The mother suspects that her son has been abusing her prescription diazepam, showing her empty pill bottle. What should be given to him to counteract the diazepam?

A 3-year-old boy who is suffering from convulsions is brought to the emergency department by his parents. They report finding him eating a rodenticide, which they brought with them for identification. The active ingredient in this brand of poison is strychnine. How does strychnine work?

A 56-year-old man came to the clinic with complaints of tremor, bradykinesia, and “a feeling of persistent restlessness” after beginning a new antipsychotic regimen 2 months ago. The patient has a history of schizophrenia and depression. He is afraid he may have Parkinson's syndrome. The doctor recommended cessation of the new regimen and assures the patient the symptoms will clear after a few weeks or months after withdrawal. What antipsychotic was the most likely to have caused the patient's symptoms?

An individual lacks the ability to synthesize dopamine in the axoplasm of the adrenergic neuron. Should the problem occur at the rate-limiting step of this conversion, which of the following substances will accumulate?