TSI - Overview: Thyroid-Stimulating Immunoglobulin, Serum

Second-order testing for autoimmune thyroid disease, including: -Differential diagnosis of etiology of thyrotoxicosis in patients with ambiguous clinical signs or contraindicated (eg, pregnant or breast-feeding) or indeterminate thyroid...

SSB - Overview: SS-B/La Antibodies, IgG, Serum

Evaluating patients with clinical features or at-risk for connective tissue disease, especially Sjögren syndrome.

APGH - Overview: Alpha-Subunit Pituitary Tumor Marker, Serum

Adjunct in the diagnosis of pituitary tumors As part of the follow-up of treated pituitary tumor patients Differential diagnosis of thyrotropin-secreting pituitary tumor versus thyroid hormone resistance Differential diagnosis of...

C9ORF - Overview: C9orf72 Hexanucleotide Repeat, Molecular Analysis, Varies

Molecular confirmation of clinically suspected cases of c9FTD/ALS, frontotemporal dementia (FTD), or amyotrophic lateral sclerosis (ALS) Presymptomatic testing for individuals with a family history of c9FTD/ALS and a documented expansion...

CARNU - Overview: Carnitine, Random, Urine

Evaluation of patients with a clinical suspicion of a wide range of conditions including organic acidemias and fatty acid oxidation disorders Monitoring carnitine treatment

RAVU - Overview: Ravulizumab, Serum

Assessing the response to ravulizumab therapy Assessing the need for dose escalation Evaluating the potential for dose deescalation or discontinuation of therapy in remission states Monitoring patients who need to be above a certain...

STFR - Overview: Soluble Transferrin Receptor (sTfR), Serum

Evaluation of suspected iron deficiency in patients who may have inflammation, infection, or chronic disease and other conditions in which ferritin concentration does not correlate with iron status, including: -Cystic fibrosis patients who...

CMVM - Overview: Cytomegalovirus (CMV) Antibodies, IgM, Serum

Aiding in the diagnosis of acute infection with cytomegalovirus This test should not be used for screening blood or plasma donors.

TAB - Overview: Thyroid Autoantibodies Profile, Serum

As an adjunct in the diagnosis of autoimmune thyroid diseases: Hashimoto disease, postpartum thyroiditis, neonatal hypothyroidism, and Graves disease Differentiating thyroid autoimmune disorders from nonautoimmune goiter or...

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...