mdcat logical reasoning MCQ #313

A 15-year-old girl develops a severe headache after a sudden increase in altitude. Which physiological process is primarily responsible for this symptom?

mdcat logical reasoning MCQ #313

  1. Question 1

    Q1. A 15-year-old girl develops a severe headache after a sudden increase in altitude. Which physiological process is primarily responsible for this symptom?

    • A) Increased oxygen delivery to the brain
    • B) Decreased respiratory rate due to high altitude
    • C) Decreased blood pressure causing cerebral hypoperfusion
    • D) Increased carbon dioxide levels causing vasodilation

    Answer: Increased carbon dioxide levels causing vasodilation

    Explanation: Decreased oxygen availability causes vasodilation due to increased CO2 levels, leading to headache.