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What Is a SEG Blood Test?

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RnCeus explains that "SEG" refers to mature neutrophils, a type of white blood cell. A blood test that measures SEG is usually trying to determine if the number of neutrophils has increased, a result that suggests the presence of a bacterial infection or an inflammatory process.

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What Is a SEG Blood Test?
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Full Answer

Although less common, a reduction in neutrophils can also indicate health problems, says Lab Tests Online. A low neutrophil count may indicate an autoimmune disorder, the presence of an overwhelming infection, a drug reaction or aplastic anemia.

Mercy Medical Center-North Iowa reports that the normal range for SEG in an adult is 35 to 80 percent and 1.6 to 7.1 thousand per microliter.

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