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Physiology General a0666ce1

Which of the following defines hematocrit:March 2013

A
Number of erythrocytes in blood
B
Percentage of the blood, by volume, occupied by erythrocytes
C
Ratio of erythrocytes to leucocytes
D
Ratio of erythrocytes to all blood cells
High-Yield Explanation
Ans. B i.e. Percentage of the blood, by volume, occupied by erythrocytesHematocritIt is also known as packed cell volume (PCV) or erythrocyte volume fraction (EVF)It is the volume percentage (%) of red blood cells in bloodIt is normally about 45% for men and 40% for women.
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