Sep 19, 2023 · Doctors often measure IgA, IgG, and IgM together to get a snapshot of your immune function. A lab tech will usually take a sample of your blood by inserting a needle into a vein in your arm.

Having an IgA deficiency means that you have low levels or no immunoglobulin A in your bloodstream. Immunoglobulin A (IgA) is a blood protein that's part of your immune system. Your body makes IgA to help fight off sickness.

Selective IgA deficiency is the most common primary antibody deficiency and is usually asymptomatic – please refer to Selective IgA deficiency guideline. Patients by definition have normal levels of IgG and IgM, and no paraprotein.

May 18, 2018 · IgA levels are measured in Milligrams per Deciliter, abbreviated as mg/dL. A Normal IgA levels child below 7 years of age has their immunoglobulin-A level between 7 and 256 mg/dL. Older children up to 13 years old have higher IgA levels.

Jan 22, 2021 · Normal IgA levels prevent the immune system from mounting an attack against food components and good bacteria in the gut. Your doctor may order a blood test to check if your IgA levels are normal. The normal range depends on …

The initial laboratory examination of humoral immunity consists of measuring levels of various immunoglobulin isotypes (IgG, IgA, IgM, and possibly IgGSc) in serum and comparison with values from normal age-matched controls.

Jun 26, 2023 · Immunoglobulin A (IgA) deficiency is a common primary immunodeficiency characterized by undetectable serum IgA, a concomitant lack of secretory IgA, and normal levels of other immunoglobulins. IgA deficiency should be distinguished from any other cause of hypogammaglobulinemia or T lymphocyte defect.