Overview
Your healthcare provider will diagnose PIDD based on your personal and family medical history, a physical examination and laboratory testing.
To confirm your diagnosis, your provider may order tests that include:
- Blood tests to identify specific immune system abnormalities.
- Genetic tests to find mutations on genes.
- Flow cytometry, which uses a special laser to examine samples of immune system cells.
In addition, all U.S. states include testing for a type of PIDD called severe combined immunodeficiency (SCID) as part of newborn screening.
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