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HelpTest Code ELU Elution, Blood
Shipping Instructions
Specimen must arrive within 72 hours of draw.
Specimen Required
Only orderable as a reflex. For more information see DAT / Direct Coombs, Blood.
Container/Tube: Pink top (EDTA)
Specimen Volume: Entire specimen
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Useful For
Detection of alloantibodies or autoantibodies directed against red blood cell antigens
Evaluation of transfusion reactions
Evaluation of hemolytic anemia
Testing Algorithm
When the direct Coombs test is positive due to IgG, then elution is performed at an additional charge. The eluate is tested for antibody identification.
Method Name
Only orderable as a reflex. For more information see DAT / Direct Coombs, Blood.
Acid-EDTA Elution
Reporting Name
ElutionSpecimen Type
Whole Blood EDTASpecimen Minimum Volume
3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | |||
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Only orderable as a reflex. For more information see DAT / Direct Coombs, Blood.
Negative, nonreactive eluate
If positive, antibody identification will be performed.
Performing Laboratory
MCHS- MankatoTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
86860
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| ELU | Elution | 34477-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| ELU | Elution | 34477-0 |
Day(s) Performed
Monday through Sunday