Final answer:
The alternate name for packed cell volume (PCV) is hematocrit (HCT), which measures the volume percentage of red blood cells in centrifuged blood. option b.
Step-by-step explanation:
The alternate name for packed cell volume (PCV) is hematocrit (HCT). Packed cell volume, or hematocrit, refers to the volume percentage of erythrocytes in a sample of centrifuged blood.
The measurement gives an indication of the proportion of red blood cells (RBCs) in the blood, which can be significant in diagnosing and managing various medical conditions such as anemia or polycythemia.
In a hematocrit test, blood is spun in a centrifuge, causing the heavier erythrocytes to settle at the bottom and the plasma to remain on top, with the 'buffy coat' formed of leukocytes and thrombocytes in between.
Option b.