FRT4 - Overview: T4 (Thyroxine), Free, Serum

Evaluating suspected thyroid function disorders using free thyroxine measured together with thyroid-stimulating hormone

LD - Overview: Lactate Dehydrogenase (LDH), Serum

Investigation of a variety of diseases involving the heart, liver, muscle, kidney, lung, and blood Monitoring changes in tumor burden after chemotherapy; lactate dehydrogenase elevations in patients with cancer are too erratic to be of use...

K11CS - Overview: Kelch-Like Protein 11 Antibody, Cell Binding Assay, Serum

Evaluating patients with paraneoplastic or autoimmune encephalitis (brainstem encephalitis or limbic encephalitis or cerebellar ataxia) using serum specimens

SFINC - Overview: Cerebrospinal Fluid (CSF) IgG Index, Spinal Fluid

Aiding in the diagnosis of multiple sclerosis and other central nervous system inflammatory conditions using cerebrospinal fluid specimens

F_10 - Overview: Coagulation Factor X Activity Assay, Plasma

Diagnosing deficiency of coagulation factor X, congenital or acquired Evaluating hemostatic function in liver disease Investigation of prolonged prothrombin time or activated partial thromboplastin time

ELPSR - Overview: Electrolyte Panel, Serum

Identifying a suspected imbalance in electrolytes or acid/base imbalance

HIAAP - Overview: 5-Hydroxyindoleacetic Acid, Plasma

Biochemical diagnosis and monitoring of intestinal carcinoid syndrome using a plasma specimen

ADNAS - Overview: Anti-DNase B Titer, Serum

Demonstration of acute or recent streptococcal infection using anti-DNase B titer

C4 - Overview: Complement C4, Serum

Investigating an undetectable total complement Confirming hereditary angioedema (with low C1 inhibitor) Assessing disease activity in systemic lupus erythematosus, proliferative glomerulonephritis, rheumatoid arthritis, and autoimmune...

DSAC - Overview: Disaccharidase Activity Panel, Tissue

Evaluation of patients who present with signs or symptoms suggestive of disaccharidase disorders This test is not intended for carrier detection.