Ordering Guidance

The profile test should not be requested in patients who have recently received radioisotopes, therapeutically or diagnostically, because of potential assay interference. The specific waiting period before specimen collection will depend on the isotope administered, the dose given, and the clearance rate in the individual patient. Specimens will be screened for radioactivity prior to analysis. Radioactive samples received in the laboratory will be held 1 week and assayed if sufficiently decayed or canceled if radioactivity remains.

Specimen Required

Only orderable as part of a profile. For more information see:

PAVAL / Paraneoplastic, Autoantibody Evaluation, Serum

MGLE / Myasthenia Gravis/Lambert-Eaton Myasthenic Syndrome Evaluation, Serum

MDS2 / Movement Disorder, Autoimmune Evaluation, Serum

PNEFS / Neuroimmunology Antibody Follow-Up, Serum