BA48F - Overview: Bile Acids, Bowel Dysfunction, 48 Hour, Feces

Aids in evaluation of patients suspected of having irritable bowel syndrome-diarrhea symptoms due to bile acid malabsorption

Q10 - Overview: Coenzyme Q10, Reduced and Total, Plasma

Diagnosis of primary coenzyme Q10 (CoQ10) deficiencies in some patients who are not supplemented with CoQ10 Diagnosis of CoQ10 deficiency in mitochondrial disorders Monitoring CoQ10 status during treatment of various degenerative...

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

199PT - Overview: Carbohydrate Antigen 19-9 (CA 19-9), Peritoneal Fluid

An adjunct to cytology to differentiate between malignancy-related ascites and benign causes of ascites formation

COWB - Overview: Cobalt, Blood

Monitoring exposure to cobalt using whole blood specimens Monitoring metallic prosthetic implant wear This test is not useful for assessment of vitamin B12 activity.

SFIG - Overview: Cerebrospinal Fluid IgG Index Profile, Serum and Spinal Fluid

Aiding in the diagnosis of multiple sclerosis and other central nervous system inflammatory conditions

DBS1 - Overview: Diabetes Mellitus Type 1 Evaluation, Serum

Distinguishing type 1 from type 2 diabetes mellitus Identifying individuals at risk of type 1 diabetes (including high-risk relatives of patients with diabetes) Predicting future insulin requirement treatment in patients with adult-onset...

GLP - Overview: Glucagon, Plasma

Diagnosis and follow-up of glucagonomas and other glucagon-producing tumors Assessing diabetic patients with problematic hyper- or hypoglycemic episodes (extremely limited utility)

HVA - Overview: Homovanillic Acid, 24 Hour, Urine

Screening children for catecholamine-secreting tumors using a 24-hour urine collection when requesting homovanillic acid only Monitoring neuroblastoma treatment Screening patients with possible inborn errors of catecholamine metabolism