MDCAT Biology MCQ #2134

A 30-year-old woman has Raynaud's phenomenon. What is the primary pathophysiological mechanism?

MDCAT Biology MCQ #2134

  1. Question 1

    Q1. A 30-year-old woman has Raynaud's phenomenon. What is the primary pathophysiological mechanism?

    • A) Vasodilation
    • B) Vasoconstriction
    • C) Increased cardiac output
    • D) Decreased blood viscosity

    Answer: Vasoconstriction

    Explanation: Raynaud's phenomenon involves exaggerated vasoconstriction in response to cold or stress, reducing blood flow to digits.