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Nitroblue tetrazolium test


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Nitroblue tetrazolium test
Nitroblue tetrazolium test is a blood test that measures the ability of the immune system to convert the colorless nitroblue tetrazolium (NBT) to a deep blue. This test is performed as a screen for chronic granulomatous disease (CGD). If an individual has CGD, the chemicals in their blood will not turn blue when exposed to the NBT.


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