QFT4 - Overview: QuantiFERON-TB Gold Plus, Blood

Indirect test for Mycobacterium tuberculosis infection, to be used in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations This test is not recommended for use for diagnosis of active tuberculosis...

ASMW - Overview: Acid Sphingomyelinase, Leukocytes

Investigation of possible diagnosis of Niemann-Pick disease types A and B This test is not recommended for carrier detection because of the wide range of enzymatic activities observed in carriers and noncarriers.

RLTE4 - Overview: Leukotriene E4, Random, Urine

Aiding in the evaluation of patients at-risk for mast cell activation syndrome (eg, systemic mastocytosis, IgE-mediated allergies, or aspirin-exacerbated respiratory disease) using random urine collections

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...

ADNA1 - Overview: Double-Stranded DNA (dsDNA) Antibodies, IgG, Serum

Evaluating patients with clinical features or at-risk for systemic lupus erythematosus (SLE) Monitoring disease activity, as an adjunct test, in patients with SLE previously positive for double-stranded DNA IgG antibodies

TLTE4 - Overview: Leukotriene E4, 24 Hour, Urine

Aiding in the evaluation of patients at-risk for mast cell activation syndrome (eg, systemic mastocytosis, IgE-mediated allergies, or aspirin-exacerbated respiratory disease) using 24-hour urine collections

VWFMP - Overview: von Willebrand Factor Multimer Analysis, Plasma

As a reflex component of several coagulation consultation unit codes, when indicated When results of complementary laboratory tests are abnormally low or discordant (eg, F8A / Coagulation Factor VIII Activity Assay, Plasma; VWACT / von...

ALPI - Overview: Alkaline Phosphatase Isoenzymes, Serum

Aid in the diagnosis and treatment of liver, bone, intestinal, and parathyroid diseases Determining the tissue source of increased alkaline phosphatase (ALP) activity in serum Differentiating between liver and bone sources of elevated...

ALKP - Overview: Alkaline Phosphatase, Total and Isoenzymes, Serum

Aid in the diagnosis and treatment of liver, bone, intestinal, and parathyroid diseases Determining the tissue source of increased alkaline phosphatase (ALP) activity in serum Differentiating between liver and bone sources of elevated ALP

CARBG - Overview: Carbamazepine-10,11-Epoxide, Serum

Monitoring patients exhibiting symptoms of carbamazepine toxicity whose total serum carbamazepine concentration is within the therapeutic range, but who may be producing significant levels of the active metabolite epoxide, which can...