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PCCN Progressive Care Certified Nursing

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Average life of red blood cells in the body is:
  1. 120 days
  2. 100 days
  3. 150 days
  4. 240 days
Explanation
Answer: A - Average life of red blood cells in the body is 120 days. Red Blood cells are biconcave disc like structures that contain hemoglobin which are the carrier of oxygen. The average life of RBCs in the body is 120 days, and after that they are destroyed in spleen. In the destroyed red blood cells the hemoglobin is also destroyed and the heme portion is recycled or excreted from the body.
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