RFPN - Overview: Rheumatoid Factor Panel, Serum

Evaluating patients at-risk of rheumatoid arthritis (RA) or features of inflammatory arthritis Differentiating the antibody isotype profile in patients positive for rheumatoid factor (RF) Aid in the risk stratification of RF-seropositive...

HBCRQ - Overview: Hepatitis B Virus Core-Related Antigen, Quantitative, Serum

Monitoring of response to antiviral therapy in individuals with chronic hepatitis B who are negative for hepatitis B e antigen (HBeAg), positive for hepatitis B e antibody, and undetectable or low hepatitis B virus DNA levels (eg, <500...

GID2 - Overview: Gastrointestinal Dysmotility, Autoimmune/Paraneoplastic Evaluation, Serum

Investigating unexplained weight loss, early satiety, anorexia, nausea, vomiting, constipation, or diarrhea in a patient with a past or family history of cancer or autoimmunity Directing a focused search for cancer Investigating...

MAS1 - Overview: Myelopathy, Autoimmune/Paraneoplastic Evaluation, Serum

Evaluating patients with suspected autoimmune myelopathy, myelitis, and paraneoplastic myelopathy using serum specimens

MAC1 - Overview: Myelopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid

Evaluating patients with suspected autoimmune myelopathy, myelitis, and paraneoplastic myelopathy using spinal fluid specimens

METAF - Overview: Metanephrines, Fractionated, 24 Hour, Urine

A first- and second-order screening test for the presumptive diagnosis of catecholamine-secreting pheochromocytomas and paragangliomas Confirming positive plasma metanephrine results

CASHR - Overview: Cashew, IgE with Reflex to Cashew Component, IgE, Serum

Evaluation of patients with suspected cashew allergy

SHBG1 - Overview: Sex Hormone-Binding Globulin, Serum

Diagnosis and follow-up of women with signs or symptoms of androgen excess (eg, polycystic ovarian syndrome and idiopathic hirsutism) An adjunct in monitoring sex-steroid and antiandrogen therapy An adjunct in the diagnosis of disorders...

PQNRU - Overview: Porphyrins, Quantitative, Random, Urine

Preferred test to begin assessment for congenital erythropoietic porphyria and porphyria cutanea tarda and during symptomatic periods for acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria when specimen...

BAMRP - Overview: Bile Acids Malabsorption Panel, Serum and Feces

Aiding in the evaluation of patients suspected of having chronic diarrhea symptoms due to bile acid malabsorption