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differential blood count
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differential blood count

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A differential blood count, also known as a differential white count, is a laboratory test that measures the percentage of each type of white blood cell in a blood sample. This test is often performed alongside a complete blood count (CBC).12

White blood cells, or leukocytes, are crucial components of the immune system, helping the body fight off infections and diseases. Variations in the number or proportion of different types of white blood cells can indicate underlying health issues. For example, an increase in certain white blood cells, like neutrophils, often signals a bacterial infection, while viral infections may lead to an increase in lymphocytes.342

The differential count typically assesses neutrophils, lymphocytes, monocytes, eosinophils, and basophils. Analyzing these counts helps healthcare professionals diagnose and monitor a wide range of conditions, from infections and inflammatory responses to more serious diseases like leukemia.24

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4 Britannica Sources
  1. differential white count
  2. blood disease - Leukocytosis
  3. complete blood count
  4. blood analysis

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