A 61-year-old woman is going on a cruise and is afraid that she will develop motion sickness during the trip. She is given a prescription for scopolamine patch. She has no other medical problems and has never had surgery. On the first day of the trip, the boat is rocking heavily, and the patient is nauseous and she applies the patch. Instead of being sedated, she actually became very excited and agitated. What is the most likely explanation for these findings?

A 61-year-old woman is going on a cruise and is afraid that she will develop motion sickness during the trip. She is given a prescription for scopolamine patch. She has no other medical problems and has never had surgery. On the first day of the trip, the boat is rocking heavily, and the patient is nauseous and she applies the patch. Instead of being sedated, she actually became very excited and agitated. What is the most likely explanation for these findings?

A 62-year-old woman with mild MS has some mild difficulty with walking. She is interested in becoming more active with walking and is considering walking a 3.1-mile event with her daughter. Which of the following agents may be beneficial in assisting her with improved ambulation?

A 47-year-old man with a history of intermittent panic disorders presents to his primary care physician desiring therapy. He has no other pertinent past medical or surgical history. Physical examination of the heart, lungs, and abdomen are within normal limits. What is the most appropriate treatment for this patient?

A 34-year-old man suffers a seizure while in a shopping mall. Witnesses tell the paramedics that the individual lost consciousness and then had rapid contraction and relaxation of his extremities. He then awoke and was confused. What is the most likely diagnosis?

A 72-year-old man is brought to his physician by his son. The son complains that this patient has been becoming forgetful, confused, moody, and aggressive over the past few months. Which of the following neurotransmitter changes is characteristic of Alzheimer's disease?