MGMR - Overview: Myasthenia Gravis Evaluation with Muscle-Specific Kinase (MuSK) Reflex, Serum

Diagnosing autoimmune myasthenia gravis (MG) in adults and children Distinguishing autoimmune from congenital MG in adults and children or other acquired forms of neuromuscular junction transmission disorders Establishing a quantitative...

TLTE4 - Overview: Leukotriene E4, 24 Hour, Urine

Aiding in the evaluation of patients at-risk for mast cell activation syndrome (eg, systemic mastocytosis, IgE-mediated allergies, or aspirin-exacerbated respiratory disease) using 24-hour urine collections

INFXR - Overview: Infliximab Quantitation with Reflex to Antibodies to Infliximab, Serum

Trough level quantitation for evaluation of patients undergoing therapy with infliximab, with signs and symptoms of loss of response to therapy.

PM3CX - Overview: Lymph3Cx Assay, Primary Mediastinal Large B-cell Lymphoma and Diffuse Large B-cell Lymphoma, mRNA Gene Expression, NanoString, Tissue

Only indicated for formalin-fixed paraffin-embedded specimens from patients diagnosed with large B-cell lymphoma

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...

SMN1Z - Overview: SMN1 Gene, Full Gene Analysis, Varies

Confirming a diagnosis of spinal muscular atrophy due to nucleotide variants in SMN1 gene Second-tier carrier screening when there is a family history of spinal muscular atrophy, but an affected individual is not available for testing, or...

SQTSG - Overview: Short QT Syndrome Gene Panel, Varies

Providing a genetic evaluation for patients with a personal or family history suggestive of short QT syndrome Establishing a diagnosis of short QT syndrome

SSAB - Overview: SS-A and SS-B Antibodies, IgG, Serum

Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive, especially those with signs and symptoms consistent with Sjogren syndrome or lupus erythematosus This test...

NMS1 - Overview: Necrotizing Myopathy Evaluation, Serum

Evaluating patients with suspected necrotizing autoimmune myopathy

PSTF - Overview: Protein S Antigen, Plasma

Investigation of patients with a history of thrombosis