ABO Grouping and Rho(D) Typing

CPT: 86900; 86901
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Test Details

Synonyms

  • Blood Grouping and Rh Typing
  • Blood Type
  • Group and Type
  • Type and Rh

Test Includes

ABO blood grouping and Rh typing

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.

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

Specimen Requirements

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.

Stability Requirements

Temperature

Period

Room temperature

7 days

Refrigerated

7 days

Causes for Rejection

Gross hemolysis; bacterial or other contamination

Clinical Information

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.

References

Fung MK, Grossman JB, Hillyer CD, Westoff CM, eds. AABB Technical Manual. 18th ed. Bethesda, Md: American Association of Blood Banks;2014.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
006049 ABO Grouping and Rho(D) Typing 006056 ABO Grouping 883-9
006049 ABO Grouping and Rho(D) Typing 006064 Rh Factor 10331-7
Reflex Table for ABO Grouping
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 114067 ABO Grouping 006051 ABO Grouping 883-9
Reflex Table for Rh Factor
Order Code Order Name Result Code Result Name UofM Result LOINC
Reflex 1 114066 Rh Factor 006052 Rh Factor 10331-7

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