Differential Leucocyte count

The differential leukocyte count is a laboratory test used to measure the number of different types of white blood cells in a person’s sample of blood.

Types of White blood cell

—Neutrophil  – Neutrophils are the most abundant (40% to 70%) type of white blood cells .Their main function is engulfing and destroying the bacteria,.

—Lymphocytes  – Lymphocytes are a type of white blood cell. They help your body’s immune system fight against foreign viruses and bacteria.  These cells are responsible for antibody production.

—Eosinophil   – Eosinophils are a type of disease-fighting white blood cell. This condition most often indicates a parasitic infection, an allergic reaction.

—Monocytes  – Monocytes call on other white blood cells to help treat injury and prevent infection.

—Basophils  – Basophils are a type of white blood cell. Basophils are the least common type of granulocyte, representing about 0.5% to 1% of circulating white blood cells.

When to test Differential Leucocyte count ?

It is used to help diagnose infections and other conditions, such as leukemia and other forms of cancer.

The test measures the number of neutrophils, lymphocytes, monocytes, eosinophils, and basophils in the sample.

The results can help a doctor diagnose an infection, determine if a person has an immune system disorder, or assess how well a person’s body is responding to treatment for a medical condition.

NORMAL RANGE

—Neutrophil     –    50-70 %

—Lymphocyte   –    20-40 %

—Eosinophil     –     1-6 %

—Monocyte     –      0-5 %

—Basophil       –       0-1 %

Sample – EDTA