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What are "segs" in lab tests?

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Quick Answer

The term "segs" is laboratory shorthand for segmental neutrophils. "Segs" are part of a white blood cell differential test and are responsible for fighting infection within the body.

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What are "segs" in lab tests?
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Full Answer

Neutrophils are also called polymorphonuclears or PMNs. The nucleus of mature white blood cells appear segmented, while immature white blood cells are rod-shaped and known as "bands."

Neutrophils are the first white blood cells to fight off an infection and appear within minutes after a wound is detected. They are predominantly found in the pus of a wound or injury and are responsible for the yellow-whitish color. A high neutrophil count on a white blood cell differential is a sign of acute infection.

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