MDCAT Biology MCQ #2117

A patient with severe anemia has an increased cardiac output. Which mechanism is primarily responsible for this compensation?

MDCAT Biology MCQ #2117

  1. Question 1

    Q1. A patient with severe anemia has an increased cardiac output. Which mechanism is primarily responsible for this compensation?

    • A) Increased sympathetic tone
    • B) Decreased peripheral resistance
    • C) Increased stroke volume
    • D) Increased venous return

    Answer: Increased sympathetic tone

    Explanation: Increased sympathetic tone increases heart rate and contractility. Decreased peripheral resistance is not the primary cause.