A 78-year-old man with generalized anxiety disorder and mild dementia is being seen by his primary care physician. Physical examination of the heart, lungs, and abdomen are within normal limits. Which of the following would be the best treatment option for his generalized anxiety disorder?

A 78-year-old man with generalized anxiety disorder and mild dementia is being seen by his primary care physician. Physical examination of the heart, lungs, and abdomen are within normal limits. Which of the following would be the best treatment option for his generalized anxiety disorder?

A 16-year-old boy is brought to the urgent care clinic after suffering an episode of lip smacking followed by stiffness and convulsions. His mother explains that this is the third such attack in the past 2 years and that each attack has lasted about a minute. The pediatrician prescribes carbamazepine to control his seizures. What is the mechanism of action of this agent?

A 29-year-old woman who has been diagnosed with multiple sclerosis presents to her primary care physician with muscle rigidity and spasms. She also complains of difficulty sleeping, heartburn, and muscle pain. One of the drugs her physician prescribes is baclofen. Which of the following will baclofen do for this patient?

A 29-year-old man with spinal cord injury and with chronic gastric immotility syndrome has failed therapy with numerous cholinoimimetic agents. He has begun on therapy with physostigmine. Unfortunately, a supratherapeutic dose is administered to the patient. Which of the following effects must the treating physician be aware of?

A 68-year-old man with a 6-month history of progressive pill-rolling tremors of the hands, urinary incontinence, and cogwheel rigidity presents to his primary care physician for evaluation. Physical examination confirms the earlier findings. Which of the following is a therapeutic goal for this condition?