A 24-year-old woman with a history of severe motion sickness is planning a transatlantic cruise lasting seven days. Her physician prescribes a transdermal patch applied behind the ear, delivering 1 mg of medication over 72 hours. Vitals: HR 72, BP 118/76, RR 14, Temp 37°C. Physical examination reveals bilateral pupils that are equal and reactive to light. She denies visual disturbances or headaches. Which of the following drugs most likely prevents nausea by blocking muscarinic receptors in the vestibular system and produces anticholinergic side effects including dry mouth and mydriasis?
- A)Meclizine
- B)Metoclopramide
- C)Aprepitant
- D)Ondansetron
- E)ScopolamineGABARITO
Explicação
Scopolamine is an antimuscarinic drug commonly used as a transdermal patch for motion sickness. By blocking muscarinic signaling from the vestibular apparatus to the vomiting center, it reduces nausea associated with motion. Dry mouth and blurry vision are com... Ver explicação completa e trilha adaptativa →