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Packed cell volume – Definition , Normal Value & Significance

Presentation Notes on PCV Significance, High Low Range, Test & Hematocrit Value for Medical Biology Students in word/ .ppt/ .pdf Format

PACKED CELL VOLUME

 DEFINITION

Packed cell volume (PCV) is the hematocrit value exp­ressed as the percentage of cellular elements with that of whole blood. This is the volume of red blood cells packed at the bottom of a hematocrit tube when the blood is centrifuged.

SIGNIFICANCE OF DETERMINING PCV

Determination of PCV helps in

  1. Diagnosis and treatment of anemia
  2. Diagnosis and treatment of polycythemia
  3. Determination of extent of dehydration and recovery from dehydration after treatment
  4. Decision of blood transfusion

NORMAL VALUES OF PCV

The normal PCV is:

In males        = 40 to 45%.
In females     = 38 to 42%

VARIATIONS IN PCV

PCV increases in polycythemia and dehydration, decreases in anemia, pregnancy and cirrhosis of liver.

Download Notes on Packed Cell Volume in Word

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