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What is immunoglobulin E?

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Your body makes Immunoglobulin E (IgE) antibodies when it overreacts to substances that aren't harmful, such as pollen or pet dander. Your doctor will likely measure your IgE levels if you have a blood test to check for allergies.

From: What Is an Immunoglobulin Test? WebMD Medical Reference

SOURCES:

American Association for Clinical Chemistry: "Quantitative Immunoglobulins: At a Glance," "Quantitative Immunoglobulins: Test Sample," "Quantitative Immunoglobulins: The Test."

Mayo Clinic: "Lumbar puncture (spinal tap): What you can expect."

Nemours Foundation: "Blood Test: Immunoglobulins (IgA, IgG, IgM)."

Pagana, Kathleen Deska. , 2016. Mosby's Diagnostic and Laboratory Test Reference

University of Rochester Medical Center: "Quantitative Immunoglobulins."

Reviewed by Melinda Ratini on January 10, 2017

SOURCES:

American Association for Clinical Chemistry: "Quantitative Immunoglobulins: At a Glance," "Quantitative Immunoglobulins: Test Sample," "Quantitative Immunoglobulins: The Test."

Mayo Clinic: "Lumbar puncture (spinal tap): What you can expect."

Nemours Foundation: "Blood Test: Immunoglobulins (IgA, IgG, IgM)."

Pagana, Kathleen Deska. , 2016. Mosby's Diagnostic and Laboratory Test Reference

University of Rochester Medical Center: "Quantitative Immunoglobulins."

Reviewed by Melinda Ratini on January 10, 2017

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What does a high immunoglobulin level mean?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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