Rh Typing

CPT: 86901
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  • Rh Factor

Test Includes

Rh(D) typing

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.

Expected Turnaround Time

1 - 2 days

Related Documents

Specimen Requirements


Whole blood


4 mL

Minimum Volume

0.5 mL


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



Room temperature

7 days


7 days

Causes for Rejection

Gross hemolysis; bacterial or other contamination

Test Details


Determine Rh type for transfusion candidates. Rh typing of expectant mothers may indicate potential for Rh hemolytic disease of the fetus/newborn. This typing is also used to determine Rh immune globulin candidacy for prenatal and postpartum patients.


Presence of potent 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.




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


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
006064 Rh Factor 10331-7 006064 Rh Factor 10331-7
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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