A normal hematocrit range during pregnancy is which of the following?

A normal hematocrit range during pregnancy is which of the following?

• A. 20-30%
• B. 50-60%
• C. 30-40%
• D. 36-50%

Answer: (D)

Hematocrit shows how much of your blood is made up of red blood cells, so it reflects the balance between plasma volume and red cell mass. During pregnancy, plasma volume expands a lot, and red cell mass increases too but not as quickly, which dilutes the blood and lowers the hematocrit compared with nonpregnant values. Because reference ranges can vary by lab and by trimester, many guidelines place normal hematocrit during pregnancy in the mid-30s to low-40s percent, with some sources giving a broader upper limit that can approach 50%. The range provided in this question fits with that broader pregnancy reference, illustrating that hematocrit can still fall within a normal range despite dilution. Clinically, hematocrit values that are consistently very low suggest anemia of pregnancy, while unusually high values may indicate dehydration or other conditions.

Hematocrit shows how much of your blood is made up of red blood cells, so it reflects the balance between plasma volume and red cell mass. During pregnancy, plasma volume expands a lot, and red cell mass increases too but not as quickly, which dilutes the blood and lowers the hematocrit compared with nonpregnant values. Because reference ranges can vary by lab and by trimester, many guidelines place normal hematocrit during pregnancy in the mid-30s to low-40s percent, with some sources giving a broader upper limit that can approach 50%. The range provided in this question fits with that broader pregnancy reference, illustrating that hematocrit can still fall within a normal range despite dilution. Clinically, hematocrit values that are consistently very low suggest anemia of pregnancy, while unusually high values may indicate dehydration or other conditions.