What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your IgD levels mean for your immune system health and whether further investigation is needed. These notes include personalized recommendations about next steps, such as consulting with an immunologist or hematologist if levels are abnormal, or whether additional testing is warranted. You'll also get the standard lab report and can track your IgD levels over time using our trends feature, which is especially helpful if you're monitoring a diagnosed condition or treatment effectiveness.

When will I get my results?

Results for the IgD test are typically available within 3-5 business days after your blood sample reaches the laboratory. You'll be notified as soon as your results are ready and can access them through your secure online account along with the doctor notes explaining what your levels mean.

Who should consider getting this test?

This test is typically ordered by doctors for people experiencing recurrent unexplained fevers, persistent inflammation, enlarged lymph nodes, or symptoms suggesting a plasma cell disorder. It's also considered for patients with suspected multiple myeloma or monoclonal gammopathy, or for those with a family history of rare immune disorders. This is a specialized test usually recommended when other immune markers suggest an unusual condition.

What symptoms indicate I may need this test?

Symptoms that might prompt your doctor to order this test include recurring fevers that come and go without clear cause, persistent joint pain and inflammation, unexplained abdominal pain, skin rashes during fever episodes, or enlarged lymph nodes or spleen. Additionally, symptoms like unexplained weight loss, bone pain, frequent infections, or extreme fatigue that suggest a blood disorder might warrant this specialized immune testing.

What is IgD and why does it matter?

IgD (Immunoglobulin D) is one of five classes of antibodies your immune system produces, though it normally exists at very low levels in your blood. While its exact function isn't completely understood, abnormally high IgD levels can signal serious conditions like multiple myeloma (a blood cancer) or hyperimmunoglobulinemia IgD syndrome (a genetic inflammatory disorder). Measuring IgD helps doctors diagnose these rare but important conditions that might otherwise be missed.

What does high IgD mean?

Very high IgD levels most commonly indicate multiple myeloma, a type of blood cancer where plasma cells produce excessive amounts of this antibody. Elevated IgD can also signal hyperimmunoglobulinemia IgD syndrome (HIDS), a rare genetic condition causing recurrent fevers and inflammation. If your IgD is high, your doctor will likely recommend additional tests to determine the underlying cause and appropriate treatment.

What happens if my IgD results are abnormal?

If your IgD levels are abnormally high, your doctor will likely refer you to a specialist such as a hematologist or immunologist for further evaluation. Additional testing may include bone marrow biopsy, imaging studies, genetic testing, or other blood work to confirm a diagnosis. Treatment depends on the underlying condition identified and may range from anti-inflammatory medications for HIDS to chemotherapy or targeted therapies for myeloma.