The superior-most structure of the brainstem is the ____________________

Which disease is caused by thiamine deficiency and includes retrograde amnesia and impaired ability to learn?

A) Korsakoff's psychosis B) Dry beriberi C) Wet beriberi D) Wernicke's encephalopathy

A 19-year-old man presents with a decreased level of consciousness. According to his girlfriend, he has no known medical problems and takes no medications. Initial treatment for this patient involves:

A) administering oxygen via nonrebreathing mask. B) ensuring airway patency and adequate breathing. C) evaluating his cardiac rhythm with the ECG monitor. D) performing a rapid check of his blood glucose level.