Which of the following describes the difference between the hemoglobin and hematocrit values of a complete blood count?
1. Hemoglobin is the amount of functional, or iron-containing, protein of the red blood cell, whereas hematocrit represents the percentage of hemoglobin in a given volume of blood.
2. Hemoglobin represents the percentage of functional protein of the red blood cell, whereas hematocrit is an indicator of the amount of functional protein of the red blood cell.
3. Hemoglobin values vary between men and women, but hematocrit values do not vary between men and women.
4. Hemoglobin values tend to be higher for males, and hematocrit values tend to be higher in females.
Hemoglobin is the amount of functional, or iron-containing, protein of the red blood cell, whereas hematocrit represents the percentage of hemoglobin in a given volume of blood.
Rationale: Hemoglobin is the iron-containing protein that bonds with oxygen, allowing the red blood cells to transport oxygen throughout the body. Normal values are higher for men than for women. Hematocrit, sometimes called paced cell volume, measures the portion of blood volume made up by red blood cells. Hematocrit values also tend to be higher in men than in women.
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