ARUP's Laboratory Test Directory

Allergen, Food, Peanut Components (uKnow) IgE : 2007211

Mnemonic: PEANUT COM

Methodology: Quantitative ImmunoCAP® Fluorescent Enzyme Immunoassay
Performed: Varies
Reported: 3-6 days
Specimen Required: Patient Prep: Multiple patient encounters should be avoided

Collect: Serum separator tube (SST). Multiple specimen tubes should be avoided

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.4 mL serum to an ARUP Standard Transport Tube. (Min: 0.25 mL)

Storage/Transport Temperature: Refrigerated

Unacceptable Conditions: Hemolyzed, icteric, or lipemic specimens

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval:
By report
Interpretive Data: Refer to report
Note: Test methodology uses solid-phase immunoassays against the whole peanut allergen (f13) and 5 antigenic epitopes (Ara h1, Ara h2, Ara h3, Ara h8, and Ara h9) and measures IgE antibody concentrations in patient serum or plasma. The binding of a specific IgE to an immobilized allergen component is detected by the addition of a secondary fluorescence-labeled anti-human IgE antibody. This test has a cutoff of 0.1 KU/L.
CPT Code(s): 86003 x6
Cross References: Peanut Component Package , Peanut molecular allergy , Peanut Test , uKnow Peanut