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HelpTest Code A1R A1 Antigen Subtype, Blood
Shipping Instructions
Specimen must arrive within 7 days of collection
Specimen Required
Container/Tube: Pink top (EDTA)
Specimen Volume: 6 mL
Pediatric Volume: 2 mL blood in 6 mL pink-top (EDTA) tube
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Useful For
Additional proof of alloantibody specificity
Assessment of solid organ transplantation donor compatibility
This test is not useful for the purpose of establishing paternity.
Reporting Name
A1 antigen subtypeSpecimen Type
Whole Blood EDTASpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Refrigerated (preferred) | 7 days | |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | OK |
Reference Values
Reported as Negative or Positive
Day(s) Performed
Monday through Friday, Sunday
Report Available
1 to 5 daysSpecimen Retention Time
14 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86905
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| A1R | A1 antigen subtype | 844-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| A1R | A1 antigen subtype | 844-1 |