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Print CPT 86900; 86901
Synonyms
- Blood Grouping and Rh Typing
- Blood Type
- Group and Type
- Type and Rh
Test Details
Turnaround Time
1 - 2 days
Use
Determination of ABO blood group and Rh type for transfusion candidates. Group and typing of expectant mothers and newborns may indicate potential for ABO hemolytic disease of the fetus/newborn. Rh typing is used to determine Rh immune globulin candidacy for prenatal and postpartum patients.
Special Instructions
If a CBC and/or an antibody screening test is ordered with this test, please submit a separate 4 mL specimen for each test.
Test Includes
ABO blood grouping and Rh typing
Limitations
Abnormal plasma proteins, cold autoagglutinins, positive direct antiglobulin test, and, in some cases, bacteremia may interfere with test interpretation. Variable testing results may be observed with partial antigens, which are rare variants of the D antigen.
Methodology
Hemagglutination
References
Fung MK, Grossman JB, Hillyer CD, Westoff CM, eds. AABB Technical Manual. 18th ed. Bethesda, Md: American Association of Blood Banks;2014.
Specimen Requirements
Information on collection, storage, and volume
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. 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