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HelpTest ID ABOMR ABO/Rh, Blood
Specimen Required
Container/Tube: Pink top (EDTA)
Specimen Volume: 6 mL
Collection Instructions:
1. Invert several times to mix blood.
2. Send whole blood specimen in original tube. Do not aliquot.
Additional Information: Blood for this test cannot be shared with other tests. Submit specimen for this test in its own vial.
Useful For
Determining blood group ABO and Rh only
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| ABIDR | Antibody Identification, RBC | Yes | No |
| ABOPR | ABORh Problem RBC | No | No |
Testing Algorithm
Includes identification of ABO and Rh blood group antigens. If indicated, antibody identification will be performed. If ABO/Rh discrepancy is detected, the ABO/Rh problem test may be ordered to result the final ABO/Rh interpretation.
Method Name
Hemagglutination
Reporting Name
ABORh, RBCSpecimen Type
Whole Blood EDTASpecimen Minimum Volume
3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood EDTA | Refrigerated (preferred) | 10 days |
| Ambient | 4 days |
Reject Due To
| Gross hemolysis | Reject |
Clinical Information
This ABO and Rh blood typing test identifies the presence of specific red cell antigens and antibodies to determine the ABO/Rh type.
Reference Values
ABO and Rh blood group antigens identified
Interpretation
Standard ABO/Rh type will be reported. Routine types include: O pos, O neg, A pos, A neg, B pos, B neg, AB pos and AB neg. Any relevant discrepancies will be noted.
Cautions
Clinical evaluation of antibodies identified is necessary to determine their potential for harm to the patient at this time and to assess appropriate action to be taken in the future.
Clinical Reference
Cohn CS, Delaney DO, Johnson ST, Katz LM, Schwartz J, eds. Technical Manual. 21st ed. AABB; 2023
Method Description
Agglutination of patient red cells with an antiserum represents the presence of the corresponding antigen on the red cells. Agglutination of patient plasma with reagent red blood cells represents the presence of the corresponding antibodies.(Cohn CS, Delaney DO, Johnson ST, Katz LM, Schwartz J, eds. Technical Manual. 21st ed. AABB; 2023)
Test 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
86900-ABO
86901-Rh
NY State Approved
NoDay(s) Performed
Monday through Sunday