Immunoglobulin A
Immunoglobulin A (IgA) is the main antibody in mucosal secretions. Levels are measured to evaluate immune deficiency or certain autoimmune conditions.
Why a doctor may order this
To evaluate humoral immunity, selective IgA deficiency, or monitor certain diseases.
Why you may need this
Your doctor may recommend this based on your symptoms or risk factors. (To evaluate humoral immunity, selective IgA deficiency, or monitor certain diseases.)
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