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Test Code LAB74 Immunoglobulin E (IgE), Serum

Important Note

Mayo's test code: IGE

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Reporting Name

Immunoglobulin E (IgE), S

Specimen Type

Serum


Ordering Guidance


For a listing of allergens available for testing, see Allergens - Immunoglobulin E (IgE) Antibodies



Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Reject Due To

Gross hemolysis OK
Gross lipemia OK

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Frozen  90 days

Specimen Minimum Volume

For only total IgE: 0.3 mL
For total IgE and more than 1 allergen: 0.05 mL x number of allergen-specific tests + 0.25 mL dead space

Day(s) Performed

Monday through Friday

Specimen Retention Time

14 days

Report Available

Same day/1 day to 3 days

Reference Values

0-5 months: ≤13 kU/L

6-11 months: ≤34 kU/L

1 and 2 years: ≤97 kU/L

3 years: ≤199 kU/L

4-6 years: ≤307 kU/L

7 and 8 years: ≤403 kU/L

9-12 years: ≤696 kU/L

13-15 years: ≤629 kU/L

16 and 17 years : ≤537 kU/L

18 years or older: ≤214 kU/L

Useful For

Evaluating patients with suspected diseases associated with elevations in total IgE, including allergic disease, primary immunodeficiencies, infections, malignancies, or other inflammatory diseases 

 

Diagnostic evaluation of patients with suspected allergic bronchopulmonary aspergillosis

 

Identifying candidates for omalizumab (anti-IgE) therapy

CPT Code Information

82785

LOINC Code Information

Test ID Test Order Name Order LOINC Value
IGE Immunoglobulin E (IgE), S 19113-0

 

Result ID Test Result Name Result LOINC Value
IGE Immunoglobulin E (IgE), S 19113-0