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The hematocrit (Ht or HCT, British English spelling haematocrit), also known as packed cell volume (PCV) or Erythrocyte Volume Fraction (EVF), is the volume percentage (%) of red blood cells in blood. It is normally 45% for men and 40% for women. It is measured an vital part of a person's complete blood calculate results, along with hemoglobin attention, white blood cell (WBC) count, and platelet count. Anemia refers to abnormally low hematocrit, as opposed to polycythemia, refers to an abnormally high hematocrit. Both are strongly critical disorders.

The term hematocrit comes from the Ancient Greek words “haima” ("blood") and krit─ôs ("judge"). It was coined by Magnus Blix at Uppsala in 1891 as haematokrit, modeled later than lactokrit, which was used in dairy farming.
Hematocrit is the blood test it measures the percentage (%) of the volume of whole blood that is made up of red blood cells (RBC). This measurement depends upon the number of red blood cells and the size of red blood cells.

How the Test is Performed?
A blood sample is needed.

How the Test will Feel?
When the needle is inserted to draw blood, some people feel more pain. Others feel only less pain. But this pain soon goes away.

Why the Test is Performed?
The hematocrit is always ordered as part of a complete blood count (CBC).

Normal results different, but in general are as follows:

Male: 40.7 to 50.3%
Female: 36.1 to 44.3%
Normal results for child different, however in common are as follows:-
Newborn: 45 to 61%
Infant: 32 to 42%

The examples above are common measurements for results of these tests. Normal value ranges vary among different laboratories. A few labs use dissimilar measurements or test dissimilar models. Speak to your physician regarding the significance of your specific test results.



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