alleryStart learning →Reticulocytes should normally make up what percentage of the erythrocyte count?
AAbout 10 to 12 percent
BAbout 5 to 6 percent
CLess than 0.1 percent
DAbout 1 to 2 percent
Answer & Solution
Correct answer: D. About 1 to 2 percent
1. A reticulocyte is an immature erythrocyte in its first day or two in the circulation.
2. Because it is a brief stage, only a small slice of the circulating red cells is at that stage at any moment.
3. Reticulocytes should comprise approximately 1 to 2 percent of the erythrocyte count.
4. Abnormally low or high values flag a deviation in the rate of red cell production, which is why the count is used diagnostically in anemia.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 18 "The Cardiovascular System: Blood", section 18.3 Erythrocytes_
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