Your Patient Is a Middle-Aged Male Who Collapsed While Shopping

Your patient is a middle-aged male who collapsed while shopping and now responds to verbal stimuli with confused speech. The primary assessment indicates no immediate life-threatening conditions. His pulse is 96, respirations 16, blood pressure 158/88, SpO₂ at 98%, blood glucose level 69 mg/dL. He is carrying a vial of nitroglycerin in his jacket pocket. Which of the following would you do next?

A) Administer oral glucose.
B) Provide high-concentration oxygen through a nonrebreather mask.
C) Administer sublingual nitroglycerin.
D) Perform a secondary assessment.