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HMS, TIP 2014 HSC 12 MC

What is cardiac output?

  1. The volume of blood ejected by the heart per minute
  2. The volume of blood sent to the lungs for oxygenation
  3. The volume of deoxygenated blood returning to the heart
  4. The volume of blood sent by the left ventricle of the heart during each contraction
Show Answers Only

\(A\)

Show Worked Solution
  • A is correct: Cardiac output is the total volume of blood pumped by the heart per minute.

Other Options:

  • B is incorrect: This describes pulmonary circulation not cardiac output.
  • C is incorrect: This describes venous return not cardiac output.
  • D is incorrect: This describes stroke volume not total cardiac output.