Quantitative nephelometry test

A blood sample is needed .

You may be asked not to eat or drink anything for 4 hours before the test.

When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging. Afterward, there may be some throbbing or slight bruising. This soon goes away.

The test provides a rapid and accurate measurement of the amounts of the immunoglobulins IgM, IgG, and IgA.

Normal results for the three immunoglobulins are: IgG: 700 to 1500 milligrams per deciliter (mg/dL), or 7.0 to 15.0 grams per liter (g/L) IgM: 25 to 200 mg/dL, or 0.25 to 2.0 g/L IgA: 40 to 350 mg/dL, or 0.4 to 3.5 g/L The examples above show the common measurements for these test results. Normal value ranges may vary…

An increased level of IgG may be due to: Chronic infection or inflammation Hyperimmunization (higher than normal number of specific antibodies) IgG multiple myeloma (a type of blood cancer ) Liver disease Rheumatoid arthritis Decreased levels of IgG may be due to: Agammaglobulinemia (very low levels of…

There is little risk involved with having your blood taken. Veins and arteries vary in size from one person to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others. Other risks associated with having blood drawn are slight, but may include: Excessive…

Abraham RS. Assessment of functional immune responses in lymphocytes. In: Rich RR, Fleisher TA, Schroeder HW, Weyand CM, Corry DB, Puck JM, eds. Clinical Immunology . 6th ed. Philadelphia, PA: Elsevier; 2023:chap 94. McPherson RA. Specific proteins. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and…