What does immunoglobulin A QN serum high level mean?

High IgA can indicate chronic inflammation or an infection. Most labs consider values above 400 mg/dL in adults high. The upper limit varies by age and is lower in children and adolescents. IgA is also elevated in people with: Liver damage [1, 2]

What does immunoglobulin A QN serum test for?

An IgA test measures the blood level of immunoglobulin A, one of the most common types of antibodies in the body. Antibodies (also called immunoglobulins) are proteins the immune system makes to recognize and get rid of germs.

What does my IgA level mean?

Your body makes IgA and other type of antibodies to help fight off sickness. Having an IgA deficiency means that you have low levels of or no IgA in your blood. IgA is found in mucous membranes, mainly in the respiratory and digestive tracts. It is also found saliva, tears, and breastmilk.

Is low IgA serious?

Most people with selective IgA deficiency are healthy, but some patients experience more frequent or severe infections. Patients with selective IgA deficiency have a slightly higher risk of having allergies (abnormal immune system reactions to environmental substances or food) and asthma (swollen airways in the lungs).

What causes elevated IgA?

Causes of increased IgA levels include: chronic infections. chronic liver disease. rheumatoid arthritis with high titres of rheumatoid factor. SLE (occurs in some patients)

What does it mean if I have high immunoglobulin M qn serum?

A high immunoglobulin A, QN and serum count can mean that the body is fighting off an infection, and levels should return to normal after the infection is over, according to HealthTap doctors and Lab Tests Online. However, the test could also mean serious autoimmune disorders or cancer.

What causes elevated immunoglobulin?

Elevated immunoglobulin levels mean that the body’s immune system has produced antibodies in response to a threat, such as bacteria, viruses, fungus, animal dander or cancer cells.

What does a high immunoglobulin A blood level mean?

ANSWER. If your immunoglobulin level is high, it might be caused by: Allergies. Chronic infections. An autoimmune disorder that makes your immune system overreact, such as rheumatoid arthritis, lupus, or celiac disease. Liver disease. Inflammatory bowel disease.

What causes low immunoglobulin?

ANSWER Low levels of immunoglobulins mean your immune system isn’t working as well as it should. This can be caused by: Medicines that weaken your immune system, such as steroids Diabetes complications Kidney disease or kidney failure A weakened immune system that you were born with or developed (as with HIV/AIDS)