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...

B6PRO - Overview: Vitamin B6 Profile (Pyridoxal 5-Phosphate and Pyridoxic Acid), 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 program...

U1A1Q - Overview: Uridine Diphosphate (UDP) Glucuronosyltransferase 1A1 TA Repeat Genotype, UGT1A1, Varies

Identifying individuals who are at increased risk of adverse drug reactions with drugs that are metabolized by uridine diphosphate glucuronosyltransferase (UGT1A1); especially irinotecan but also atazanavir, nilotinib, pazopanib, and...

HBVQN - Overview: Hepatitis B Virus (HBV) DNA Detection and Quantification by Real-Time PCR, Serum

Detection and quantification of hepatitis B virus (HBV) DNA in serum of patients with chronic HBV infection (ie, hepatitis B surface antigen-positive) Monitoring disease progression in chronic HBV infection Monitoring response to anti-HBV...

AN3TC - Overview: Antineuronal Nuclear Antibody Type 3 (ANNA-3) Titer, Spinal Fluid

Evaluating patients who present with a subacute neurological disorder of undetermined etiology and have risk factors for primary lung carcinoma Reporting an end titer result from cerebrospinal fluid specimens

AN3TS - Overview: Antineuronal Nuclear Antibody Type 3 (ANNA-3) Titer, Serum

Evaluating patients who present with a subacute neurological disorder of undetermined etiology and have risk factors for primary lung carcinoma Reporting an end titer result from serum specimens

HGEM - Overview: Hydroxyglutaric Acids, Glutaric Acid, Ethylmalonic Acid, and Methylsuccinic Acid, Blood Spot

Evaluation of patients with an abnormal newborn screen showing elevations of glutarylcarnitine (C5-DC) using dried blood spot specimens Evaluation of patients with abnormal newborn screens showing elevations of C4-acylcarnitine to aid in...

CDS1 - Overview: CNS Demyelinating Disease Evaluation, Serum

Diagnosis of inflammatory demyelinating diseases (IDDs) with similar phenotype to neuromyelitis optica spectrum disorder (NMOSD), including optic neuritis (single or bilateral) and transverse myelitis Diagnosis of autoimmune myelin...

AN2TC - Overview: Antineuronal Nuclear Antibody Type 2 (ANNA-2) Titer, Spinal Fluid

Investigating middle-aged or older patients who present with unexplainable signs of midbrain/cerebellar/brain stem disorder and/or myelopathy, especially women with a previous history of breast cancer, and both sexes if there is a history...

IOD - Overview: Iodine, Serum

Determining iodine overload using serum specimens Monitoring iodine levels in individuals taking iodine-containing drugs