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Laboratory Test Reference Guide

Laboratory Information

Test Name

IgE

External Price (excl. GST)

$26.44

Specimen Collection

Patient Specimen

5 mL blood in Gold tube or 0.5 mL separated serum

Minimum Volume

0.5 mL serum

Test Information

Department

Immunology

Test Availability

Mon - Fri, 0800 - 1630 excl. Public Holidays

Laboratory Testing Time

4 - 5 days.

Unit Of Measurement

kU/L

Reference Interval

See Age related Reference Intervals attached.

Reference Interval Attachments

Uncertainty Of Measurement

<15%

Diagnostic Use Or Instructions

The Choosing Wisely recommendations include the following:

Don’t perform unproven diagnostic tests, such as immunoglobulin G (IgG) testing or an indiscriminate battery of immunoglobulin E (IgE) tests, in the evaluation of allergy.

Food specific IgE testing should not be performed without a clinical history suggestive of IgE mediated food allergy.

IgE testing is indicated when there is a suspicion of an allergic reaction; the suspected allergen should be identified by detailed history and specified for testing. Indiscriminate batteries of IgE tests for foods are expensive and not useful, potentially leading to erroneous diagnoses and inappropriately restrictive diets.

Instructions for Referral to Waikato Lab

Aliquot Transport

fridge

Electronic Information

Registration Code

IGE

HL7Mapping Code

$IGE

LOINC Code

19113-0