Immunoglobulin M

The Immunoglobulin M (IgM) blood test measures the level of IgM antibodies in the blood. IgM is the first type of antibody produced by the immune system in response to an infection or antigen exposure.

Sample Type: The test requires a small blood sample, typically obtained by drawing blood from a vein in your arm using a needle.

Normal Range: The normal range for IgM levels can vary depending on the specific laboratory and the reference values they use. Generally, the normal range is around 40 to 230 milligrams per deciliter (mg/dL).

The IgM blood test is primarily used to assess the overall level of IgM in the body. Abnormalities in IgM levels can be indicative of various conditions, including infections, autoimmune disorders, and certain types of cancer.

High levels of IgM may be seen in acute infections, such as viral or bacterial infections, as well as in certain autoimmune disorders, such as lupus or rheumatoid arthritis. Low levels of IgM are less common but may be seen in individuals with immunodeficiency disorders or as a result of certain medications or treatments.

It’s important to note that the interpretation of the IgM test results should be done in the context of the individual’s specific medical condition and in conjunction with other clinical findings. Additional tests and evaluation may be necessary to determine the underlying cause of abnormal IgM levels.

If you have concerns about your IgM levels or suspect an immune-related condition, it’s recommended to consult with a healthcare professional for proper interpretation of your test results and to discuss any necessary steps or treatments based on the findings. They will be able to provide you with the most accurate information and guide you accordingly.