A 21-Year-Old College Student Is Brought to the Emergency Department

A 21-year-old college student is brought to the emergency department by ambulance after he crashed his car into a tree. He explains that he was trying to escape from federal agents who were attempting to frame him for murder. Despite having several facial lacerations, the patient states, "I feel great!" He denies hallucinations or suicidal ideation. His past medical history includes anxiety. The patient's temperature is 98.2°F (36.8°C) , blood pressure is 132/88 mmHg, pulse is 80/min, and respirations are 16/min. Physical exam reveals a pleasant, non-agitated young man. A neurologic exam shows normal muscle tone without involuntary muscle movement. Marijuana intoxication is suspected.  Which of the following physiologic effects is most likely to be observed in this patient?

A) Bradycardia
B) Conjunctival injection
C) Miosis
D) Mydriasis
E) Nystagmus
F) Respiratory depression

Correct Answer:

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