A 62-year-old retired small business owner has had slowly increasing intraocular pressure bilaterally. You start him on drug used to treat his open-angle glaucoma, which also happens to cross the blood–brain barrier better than other drugs in its class. Which of the following drugs is this?

A 62-year-old retired small business owner has had slowly increasing intraocular pressure bilaterally. You start him on drug used to treat his open-angle glaucoma, which also happens to cross the blood–brain barrier better than other drugs in its class. Which of the following drugs is this?

A 38-year-old man with chronic anxiety and agitation is currently being treated with a long-acting benzodiazepine. He is having challenges with sleep and is referred to a sleep center for a 24-h sleep study to further ascertain his difficulties. Which of the following is the most likely abnormality to be noted on this study?

A 21-year-old college student is brought to the emergency department by his roommate after getting high on LSD after receiving a poor grade on a final examination. Physical examination by the triage nurse is performed. Which of the following findings would be expected in this patient?

A 19-year-old man with a significant seizure history has various seizures including partial onset seizures, myoclonic seizures, and, occasionally, primary generalized tonic-clonic seizures. His physician prescribed levetiracetam. This agent likely works on which of the following structures?

A 26-year-old man complains of tremors, tachycardia, and diaphoresis when speaking in public. He has started a new job that requires him to give frequent presentations to large audiences and is worried he would not be able to work effectively. His physician prescribes propranolol. How will propranolol help with this patient's anxiety?