객관식
Which organ or tissue is responsible for producing red and white blood cells and platelets?
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17. The Blood
Introduction To Blood
객관식
What is hematocrit a measure of?
A
The total volume of blood in the body
B
The number of white blood cells in blood
C
The concentration of hemoglobin in blood
D
The percentage of red blood cells in blood
검증된 단계별 안내1
Understand the term 'hematocrit': Hematocrit is a measure used in medicine to determine the proportion of blood volume that is occupied by red blood cells.
Recognize the components of blood: Blood is composed of plasma, red blood cells, white blood cells, and platelets. Hematocrit specifically refers to the red blood cells component.
Identify the purpose of measuring hematocrit: It helps assess the oxygen-carrying capacity of blood, as red blood cells contain hemoglobin, which transports oxygen.
Learn how hematocrit is measured: A blood sample is centrifuged to separate its components, and the volume of red blood cells is compared to the total blood volume.
Clarify the correct answer: Hematocrit is the percentage of red blood cells in blood, not the total volume of blood, the number of white blood cells, or the concentration of hemoglobin.
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