A 60-year-old man presents with altered mental status. There is no evidence of trauma. Which of the following is most likely to give you specific information about the underlying cause of the patient's condition?
A) Pulse oximetry
B) A Babinski reflex
C) End-tidal carbon dioxide monitoring
D) Blood glucose determination

Question

Quizplus · Accepted Answer

Blood glucose determination can give specific information about the underlying cause of altered mental status by identifying hypoglycemia or hyperglycemia as a possible cause. The other options listed can provide important information about respiratory status and neurologic function, but may not necessarily pinpoint the exact cause of altered mental status.

A 60-Year-Old Man Presents with Altered Mental Status