A reduction in the number of circulating RBCs or hemoglobin, which leads to inadequate oxygenation of tissues, is known as:
a. polycythemia.
b. anemia.
c. iron deficiency.
d. an increase in hemoglobin.
B
The term anemia refers to a reduction in the number of circulating RBCs or hemoglobin, which leads to inadequate oxygenation of tissues. Polycythemia, a disorder in which the number of circulating RBCs is increased, is seen less often but can affect hypoxic patients (e.g., those with chronic obstructive pulmonary disease). Iron deficiency anemia is the most common type of anemia.
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