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Test ID EDN Eosinophil Derived Neurotoxin, Serum

Method Name

Fluorescence Enzyme Immunoassay (FEIA)


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Within 12 hours of collection, centrifuge and aliquot serum into a plastic vial. Serum cannot sit on either gel or cells for longer than 12 hours.


Reporting Name

Eosinophil Derived Neurotoxin, S

Specimen Type

Serum

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 7 days
  Frozen  21 days

Report Available

2 to 8 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

LOINC Code Information

Test ID Test Order Name Order LOINC Value
EDN Eosinophil Derived Neurotoxin, S 100976-0

 

Result ID Test Result Name Result LOINC Value
EDN Eosinophil Derived Neurotoxin, S 100976-0

Useful For

Evaluating patients suspected to have a condition associated with eosinophilia or hypereosinophilia

 

Evaluating patients with elevated peripheral blood eosinophil counts

 

Managing patients with elevated eosinophil-derived neurotoxin in the context of eosinophil-associated diseases

Day(s) Performed

Tuesday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

83520

Specimen Minimum Volume

0.3 mL

Reference Values

<70 mcg/L: Normal

70-99 mcg/L: Borderline

≥100 mcg/L: Elevated

Reference values apply to all ages.