hematocrit

[Dave Paprocki]

the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit

[Tayyaba]

a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood

[Taksi154r]

The percentage (by volume) of packed red blood cells in a centrifuged sample of blood

[LeeTot 0]

A centrifuge used to analyze the relative amount of red blood cells and plasma in blood

[CarinMusic]

The hematocrit () (Ht or HCT), also known by several other names, is the volume percentage (vol%) of red blood cells (RBCs) in blood, measured as part of a blood test. The measurement depends on the number and size of red blood cells. It is normally 40.7–50.3% for males and 36.1–44.3% for females. It is a part of a persons complete blood count results, along with hemoglobin concentration, white blood cell count and platelet count.
Because the purpose of red blood cells is to transfer oxygen from the lungs to body tissues, a blood samples hematocrit—the red blood cell volume percentage—can become a point of reference of its capability of delivering oxygen. Hematocrit levels that are too high or too low can indicate a blood disorder, dehydration, or other medical conditions. An abnormally low hematocrit may suggest anemia, a decrease in the total amount of red blood cells, while an abnormally high hematocrit is called polycythemia. Both are potentially life-threatening disorders.

[DennisSt]

Hematocrit, also known as packed cell volume (PCV), is a blood test that measures the percentage of a persons total blood volume that is made up of red blood cells. This measurement depends on both the number and size of red blood cells. It is often used to diagnose or monitor conditions related to the blood, such as anemia or polycythemia.

[productkeypro]

The volume of packed RED BLOOD CELLS in a blood specimen. The volume is measured by centrifugation in a tube with graduated markings, or with automated blood cell counters. It is an indicator of erythrocyte status in disease. For example, ANEMIA shows a low value; POLYCYTHEMIA, a high value.