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EPIC CODE: LAB5582 Allergen, Walnut with Reflex to Walnut Components

ADDITIONAL TEST CODE

Sunquest: WALNTS

REGIONAL HOSPITAL PERFORMING

UPH Methodist Hospital – Immuno Chemistry
UPH Pekin and UPH Proctor Hospitals will transport to UPH Methodist for testing.

Collect

1- 6mL gold (SST), red or purple.
0.3 mL serum/plasma at 2-8 C for one allergen, Add 0.1 mL for each additional allergen

Storage/Transport Temperature

2 mL or EDTA plasma or serum at 2-8ø C: for one allergen; Add 0.1 mL for each additional allergen.

Stability (from collection to initiation)

After Separation from cells:
Ambient (room temperature) Stability: 2 days
Refrigerated (2-8øC) Stability:(2-8ø C) Stability: 1 week
Frozen (-20ø C) Stability: Freeze for long term storage

Unacceptable Conditions

Hemolyzed, icteric, or lipemic samples

Remarks

Separate Serum or plasma from cells ASAP

Methodology

Immuno CAP/Fluoroenzymeimmunoassay

Components

Walnut with reflex to Jug r 1 and Jug r 3

Reference Interval

Class 00: <0.10 kU/L Absent or undetectable

Class 01: 0.10 – 0.70 kU/L Low

Class 02: 0.71 – 3.50 kU/L Moderate

Class 03: 3.51 – 17.50 kU/L High

Class 04: 17.51 – 50.00 kU/L Very High

Class 05: 50.01 – 100.00 kU/L Very High

Class 06: >100 kU/L Very High

Interpretive Data

Results with allergens scoring in Class 1 should be considered weakly positive or equivocal.ÿ Class 2 and higher should be considered positive.ÿ Although increasing class ranges (01-06) are reflective or increasing concentrations of allergen specific IgE, this may not correlate with the degree of clinical response when challenged with the specific allergen.ÿ The correlation of allergy laboratory results with clinical history is essential.
ÿ

CPT Codes

86003 × 1 and 86006 per component reflexed