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Hematocrit (B-Hkr), volume percentage of red blood cells in blood

Hematocrit (B-Hkr), volume percentage of red blood cells in blood

Hematocrit measures the percentage of red blood cells in the blood. In anemia, the red blood cell count is reduced.

Hematocrit (B-Hkr)

  • Hematocrit measures the percentage of red blood cells in the blood.
  • Hematocrit is part of the complete blood count.

Hematocrit Hkr

Hematocrit indicates the percentage of red blood cells in the total blood volume. Red blood cells transport oxygen from the lungs to other organs.

Hematocrit is part of the complete blood count and its values are interpreted in conjunction with other red blood cell values.

Reference values for hematocrit (B-HKR)

Hematocrit is expressed as a percentage. For example, hematocrit of 25% means that there are 25 millilitres of red blood cells in 100 millilitres of blood. 

Men: 39-50 %

Women: 35-46 %

Reference levels may vary depending on the laboratory and the test analysis method. Puhti samples are taken and analysed at the laboratories of Mehiläinen. 

Hematocrit is examined as part of a blood count.

High hematocrit level

Hematocrit usually changes at the same rate as hemoglobin. It is useful for detecting issues such as excessive red blood cell count, i.e. polycythemia. Polycythemia, in turn, can be caused by a blood, lung, or heart disease, or by a temporary reason, such as staying in thin mountain air.

Some sudden health issues, such as dehydration, burns, or prolonged physical exertion, can raise the body’s haematocrit levels. Heavy smoking and use of the EPO hormone also raise the levels of hematocrit. 

Low hematocrit level

Low hematocrit indicates that the number of red blood cells is lower than normal in relation to the overall blood volume. This can be caused either by too few red blood cells or too many other blood cells. 

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