PLP - Overview: Pyridoxal 5-Phosphate, Plasma

Determining vitamin B6 status, including in persons who present with progressive nerve compression disorders, such as carpal tunnel and tarsal tunnel syndromes Determining the overall success of a vitamin B6 supplementation...

GD65S - Overview: Glutamic Acid Decarboxylase (GAD65) Antibody Assay, Serum

Assessing susceptibility to autoimmune (type 1, insulin-dependent) diabetes mellitus and related endocrine disorders (eg, thyroiditis and pernicious anemia) Distinguishing between patients with type 1 and type 2 diabetes Confirming a...

FIBRO - Overview: FibroTest-ActiTest, Serum

Evaluating hepatic fibrosis in chronic hepatitis C patients Diagnosing fibrosis in carriers of chronic hepatitis B virus Evaluating hepatic fibrosis in co-infected HIV carriers Providing access to new-generation non-interferon...

DPYDZ - Overview: Dihydropyrimidine Dehydrogenase, DPYD Full Gene Sequencing, Varies

Identifying individuals at increased risk of toxicity when considering 5-fluorouracil and capecitabine chemotherapy treatment Identifying common and rare variants associated with decreased or absent dihydropyrimidine dehydrogenase (DPD)...

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

Confirming the autoimmune basis of a defect in neuromuscular transmission (eg, myasthenia gravis [MG], Lambert-Eaton myasthenic syndrome [LEMS]) Distinguishing LEMS from autoimmune forms of MG Providing a quantitative autoantibody...

MAC1 - Overview: Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid

Evaluating patients with suspected autoimmune myelopathy, myelitis, and paraneoplastic myelopathy using spinal fluid specimens

COCOU - Overview: Cortisol/Cortisone, Free, 24 Hour, Urine

Screening test for Cushing syndrome (hypercortisolism) Assisting in diagnosing acquired or inherited abnormalities of 11-beta-hydroxy steroid dehydrogenase (cortisol to cortisone ratio) Diagnosis of pseudo-hyperaldosteronism due to...

CHF8P - Overview: Chromogenic Factor VIII Inhibitor Bethesda Profile, Plasma

Detecting the presence and titer of a specific factor inhibitor directed against coagulation factor VIII for patients on emicizumab (Hemlibra) Detecting the presence and titer of an inhibitor directed against factor VIII This test is not...

APOLB - Overview: Apolipoprotein B, Serum

Assessment of cardiovascular risk Follow-up studies in individuals with basic lipid measures inconsistent with risk factors or clinical presentation Definitive studies of cardiac risk factors in individuals with significant family...

FMTT - Overview: Familial Variant, Targeted Testing, Varies

Diagnostic or predictive testing for specific conditions when a DNA variant of interest has been previously identified in a family member and follow-up testing for this specific variant in other family members is desired Carrier screening...