AN2TS - Overview: Antineuronal Nuclear Antibody Type 2 (ANNA-2) Titer, Serum

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...

AN1TS - Overview: Antineuronal Nuclear Antibody-Type 1 (ANNA-1) Titer, Serum

Diagnosis of paraneoplastic autoimmune neuropathies, encephalomyeloradiculopathies, related neurologic disorders, and intestinal pseudo-obstruction/dysmotility associated with small-cell lung carcinoma Reporting an end titer result from...

ALPS - Overview: Alpha Beta Double-Negative T Cells for Autoimmune Lymphoproliferative Syndrome, Blood

Diagnosing autoimmune lymphoproliferative syndrome, primarily in patients younger than 45 years

BTDZ - Overview: Biotinidase Deficiency, BTD Full Gene Analysis, Varies

Second-tier test for confirming biotinidase deficiency (indicated by biochemical testing or newborn screening) Carrier testing of individuals with a family history of biotinidase deficiency, but disease-causing mutations have not been...

MSCSF - Overview: Bacteria, Virus, Fungus, and Parasite Metagenomic Sequencing, Spinal Fluid

Detecting and identifying pathogenic organisms including bacteria, fungi, DNA viruses, RNA viruses, and parasites in cerebrospinal fluid This test is not recommended as a test of cure because nucleic acids may persist after successful...

CLLMD - Overview: Chronic Lymphocytic Leukemia (CLL) Monitoring Minimal Residual Disease Detection, Flow Cytometry, Varies

Confirming the presence or absence of minimal residual disease in patients with known chronic lymphocytic leukemia who are either post-chemo/immunotherapy or post-bone marrow transplant

DENGC - Overview: Dengue Virus, Molecular Detection, PCR, Spinal Fluid

Aiding in the diagnosis of central nervous system infection caused by dengue virus

DENGS - Overview: Dengue Virus, Molecular Detection, PCR, Serum

Aiding in the diagnosis of acute infection caused by dengue virus

CORTU - Overview: Cortisol, Free, 24 Hour, Urine

Preferred screening test for Cushing syndrome Diagnosis of pseudo-hyperaldosteronism due to excessive licorice consumption Test may not be useful in the evaluation of adrenal insufficiency.

CH9 - Overview: Chromogenic Factor IX Activity Assay, Plasma

Monitoring coagulation factor replacement therapy of selected extended half-life coagulation factor replacements Aiding in the diagnosis of hemophilia B using a 2-stage assay, especially when a 1-stage assay was normal