Immunoglobulin IgM
Immunoglobulin M (IgM) is the first antibody produced by the immune system in response to a new infection. It is found mainly in the blood and plays a crucial role in the early stages of immune defence before IgG takes over for long-term protection.
Turnaround up to 72 hours, estimate Turnaround: up to 72 hours after your blood draw (estimate).
Immunoglobulin IgM: what this test measures
This test measures the level of IgM antibodies in your blood. IgM is the largest antibody and is the first line of defence when a new pathogen is detected.
Immunoglobulin IgM: why this value matters
IgM levels can help identify recent or active infections and may provide clues about immune system disorders. Elevated IgM can be associated with autoimmune disease or, in some cases, certain blood cancers. Low IgM may indicate an immune deficiency.
Immunoglobulin IgM: how the blood test works
- Referral
- No GP referral needed. After the order we arrange the referral through ZorgDomein, within one business day; orders after 17:00 or at the weekend start on the next business day. ZorgDomein emails a barcode, and that barcode is what the draw site needs.
- The draw
- A blood draw from a vein in the arm, at a partner laboratory's draw site. No home kit, no finger prick.
- Results
- Turnaround: up to 72 hours after your blood draw (estimate).
- Where
- 650+ draw sites run by independent laboratories across the Netherlands. Draw sites
Immunoglobulin IgM: when is testing worthwhile?
Testing may be recommended when a recent infection is suspected, when symptoms suggest an immune disorder, or as part of a broader autoimmune panel. Consult a healthcare professional for interpretation of results.
Immunoglobulin IgM: symptoms of a high or low value
Low Levels
Frequent infections, recurrent respiratory illnesses, slow recovery from illness, chronic fatigue, susceptibility to gastrointestinal infections
High Levels
Persistent fatigue, unexplained fever, swollen lymph nodes, joint pain, skin rashes, night sweats
Immunoglobulin IgM: lifestyle and this value
Supporting your immune system through a nutrient-rich diet, regular physical activity, and sufficient sleep can contribute to balanced immunoglobulin levels. Reducing chronic stress and avoiding exposure to known infections where possible may also be beneficial.
Immunoglobulin IgM: frequently asked questions
What does a high IgM level mean?
Elevated IgM may indicate a recent or active infection, an autoimmune condition, or in rare cases a blood disorder. Your healthcare professional can help determine the underlying cause.
How is IgM different from IgG?
IgM is the first antibody produced during a new infection and provides short-term defence. IgG is produced later and provides long-term immunity. Both are important parts of the immune response.
Can stress affect IgM levels?
Chronic stress can influence immune function and may affect immunoglobulin levels. Maintaining a healthy lifestyle with adequate rest and stress management can support balanced immune responses.
Results without a doctor's assessment
You receive your values with the unit and reference range. A doctor's assessment is not part of this site. Discuss your results with your GP for explanation and treatment decisions.
Immunoglobulin IgM
€20,-