A 42-year-old man with ALS presents to his primary care physician for follow-up. He has not had any issues in the last few years and does not need supplemental oxygen. Which of the following agents may be beneficial to delay the need for ventilator support in this patient?

A 42-year-old man with ALS presents to his primary care physician for follow-up. He has not had any issues in the last few years and does not need supplemental oxygen. Which of the following agents may be beneficial to delay the need for ventilator support in this patient?

A 42-year-old woman presents to her primary care physician in follow-up from a visit to the emergency department for a treatment of a seizure. The patient has had seizures approximately every other month for the last 6 months. Consideration is now being given to beginning an antiseizure medication. Which of the following indications will play the lowest role in the physician's mind as to which antiseizure agent to start in this patient?

A 62-year-old man presents with cogwheel rigidity, resting tremor, and bradykinesia. He is diagnosed with Parkinson's disease. His medications include a monoamine oxidase (MAO) inhibitor and a catechol-O-methyltransferase (COMT) inhibitor. The intent of inhibiting these enzymes is to increase synaptic dopamine, although many amine neurotransmitters are substrates for both of these enzymes. Which of the following is a substrate for MAO only?

A 54-year-old man is elected to undergo a total knee replacement following a knee arthroscopy. He arrives the day of the surgery in good health. The anesthesiologist induces sedation using phenobarbital. Which of the following parameter changes may be evident in this patient because of the phenobarbital?

A 37-year-old man is preparing to undergo functional endoscopic sinus surgery. In the operating room, he is given intravenous succinylcholine. This agent will initially produce which of the following responses?