SHIGC - Overview: Shigella Culture, Feces

Determining whether Shigella species may be the cause of diarrhea Reflexive testing for Shigella species from nucleic acid amplification test-positive stool This test is generally not useful for patients hospitalized more than 3 days...

SM - Overview: Smith (Sm) Antibodies, IgG, Serum

Evaluating patients with clinical features suggestive of antinuclear antibody associated connective tissue disease and the confirmation of a diagnosis of systemic lupus erythematosus. Testing for Smith antibodies is not useful in patients...

SPSA - Overview: Prostate-Specific Antigen (PSA) Screen, Serum

As a screening aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men 50 years or older Screening to aid in the prognosis and management of individuals diagnosed with prostate cancer

LFRI - Overview: Progentec aiSLE DX Lupus Flare Risk Index, Plasma

Aiding in the assessment of risk of flare in lupus patients when used in conjunction with standard clinical assessment

PSAU - Overview: Prostate-Specific Antigen (PSA) Ultrasensitive, Serum

As an aid in the detection of prostate cancer when used in conjunction with a digital rectal exam in men ages 50 years and older To aid in the prognosis and management of individuals diagnosed with prostate cancer Monitoring disease after...

PTHFN - Overview: Parathyroid Hormone, Fine-Needle Aspiration Biopsy (FNAB)-Needle Wash

Discriminating thyroid tissue from enlarged parathyroid glands Facilitating parathyroid localization prior to surgery An adjunct to cytology examination of fine-needle aspiration specimens to confirm or exclude presence of parathyroid...

RIB - Overview: Ribosome P Antibodies, IgG, Serum

As an adjunct in the diagnostic evaluation of patients with systemic lupus erythematosus (SLE) May be useful in the phenotypic stratification of SLE patients at risk for neuropsychiatric SLE, lupus nephritis and/or hepatitis

RNP - Overview: RNP Antibodies, IgG, Serum

Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive Testing for ribonucleoprotein particle antibodies is not useful in patients without demonstrable...

T3 - Overview: T3 (Triiodothyronine), Total, Serum

Second-order testing for hyperthyroidism in patients with low thyroid-stimulating hormone values and normal thyroxine levels Diagnosing triiodothyronine (T3) toxicosis This test is not useful for general screening of the population...

T4 - Overview: T4 (Thyroxine), Total Only, Serum

Monitoring treatment with synthetic hormones (synthetic T3 [triiodothyronine] will cause a low total T4 [thyroxine]) Monitoring treatment of hyperthyroidism with thiouracil and other anti-thyroid drugs Index of thyroid function when the...