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Red blood cell count (RBC-count) is the number of erythrocytes in one liter of blood.Packed cell volume (PCV) is the percentage of erythrocytes in one liter of blood.

Thus, PCV is a measure of the totalvolume of red blood cells in a sample, while RBC-count is the number of red blood cells in a sample, MCV- mean corpuscular volume is the mean volume of erythrocytes in a sample, thus:

PCV = RBC-count x MCV

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What is pct in complete blood count?

PCT stands for platelet crit, which is a measure of the volume occupied by platelets in the whole blood sample. It is used to assess platelet function and can help in the diagnosis of various blood disorders. Low PCT levels may indicate conditions such as thrombocytopenia, while high levels may be present in thrombocytosis.


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