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HMS, BM EQ-Bank 874 MC

Anaemia can impact cardiovascular system efficiency. Which of the following best explains why?

  1. Decreased haemoglobin levels reduce oxygen-carrying capacity of blood
  2. Increased blood viscosity restricts blood flow through vessels
  3. Decreased heart rate reduces cardiac output
  4. Increased blood pressure creates resistance in the circulatory system
Show Answers Only

\(A\)

Show Worked Solution
  • A is correct. Anaemia is characterised by reduced haemoglobin levels or red blood cell count, which decreases the blood’s capacity to transport oxygen.

Other Options:

  • B is incorrect: Anaemia typically decreases blood viscosity, not increases it.
  • C is incorrect: Anaemia often leads to increased heart rate as a compensatory mechanism.
  • D is incorrect: Anaemia doesn’t directly cause increased blood pressure.