ABO Grouping
| ABO Grouping | | | |
| Number | | 006056 |
| CPT | | 86900 |
| Related Information | | Rh-hr Phenotype With ABO Grouping |
| Synonyms | | Blood Grouping ; Blood Type, Group |
| Special Instructions | | This test does not include Rh typing. Please refer to ABO Grouping and Rho(D) Typing [006049] to order both tests. If a CBC and/or antibody screening test is ordered with this test, please submit a separate 4 mL specimen for each test ordered. |
| Specimen | | Whole blood |
| Volume | | 4 mL |
| Minimum Volume | | 1 mL |
| Container | | Lavender-top (EDTA) tube |
| Storage Instructions | | Specimens should be tested as soon as possible or within 72 hours of collection. Samples that cannot be tested immediately should be stored at 2°C to 8°C. Do not freeze red cells. |
| Causes for Rejection | | Gross hemolysis; bacterial or other contamination |
| Use | | Determination of ABO blood group for transfusion candidates. Blood grouping of expectant mothers and newborns may indicate potential for ABO hemolytic disease. |
| Limitations | | Abnormal plasma proteins, cold autoagglutinins, positive direct antiglobulin test, and, in some cases, bacteremia may interfere with test interpretation. |
| Methodology | | Hemagglutination |
| References | | Technical Manual, 15th ed, Bethesda, MD: American Association of Blood Banks, 2005. |
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