Which condition results from premature destruction of red blood cells, leading to anemia?

Which condition results from premature destruction of red blood cells, leading to anemia?

• A. Aplastic anemia
• B. Hemolytic anemia
• C. Pernicious anemia
• D. Iron-deficiency anemia

Answer: (B)

Premature destruction of red blood cells leads to anemia because the body loses cells faster than it can replace them. When red blood cells are broken down more quickly than they are produced, hemolysis caps the supply of circulating cells, resulting in reduced oxygen-carrying capacity. In this situation, the marrow responds by pumping out more immature red cells (reticulocytes), and lab clues like high bilirubin and low haptoglobin often appear, reflecting increased breakdown of heme. This scenario specifically describes hemolytic anemia, where the main problem is rapid destruction of red blood cells. It’s different from aplastic anemia, which is a failure of the bone marrow to produce enough blood cells; pernicious anemia, a type of megaloblastic anemia caused by vitamin B12 deficiency; and iron-deficiency anemia, where insufficient iron impairs hemoglobin production and red cells become small and pale.

Premature destruction of red blood cells leads to anemia because the body loses cells faster than it can replace them. When red blood cells are broken down more quickly than they are produced, hemolysis caps the supply of circulating cells, resulting in reduced oxygen-carrying capacity. In this situation, the marrow responds by pumping out more immature red cells (reticulocytes), and lab clues like high bilirubin and low haptoglobin often appear, reflecting increased breakdown of heme.

This scenario specifically describes hemolytic anemia, where the main problem is rapid destruction of red blood cells. It’s different from aplastic anemia, which is a failure of the bone marrow to produce enough blood cells; pernicious anemia, a type of megaloblastic anemia caused by vitamin B12 deficiency; and iron-deficiency anemia, where insufficient iron impairs hemoglobin production and red cells become small and pale.