**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a patient direct program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
This test is used to detect the levels of the major classes of immunuglobulins, which are IgA, IgE, IgG and IgM. This test can give important information regarding one’s immune system.
Patient Preparation: Discontinue any supplements containing Biotin for 72 hours prior to specimen collection.