- Transaction Code: 3103-00/3104-00
- CPT Code (Suggested): 86850, 86900/86901
Includes ABO, Rh, and antibody screen (indirect antiglobulin test) to detect previous alloimmunization to clinically significant red blood cell antigens. Recommended at initial prenatal evaluation and at 26-28 weeks gestation (for first pregnancies and/or Rh negative women only). All Rh negative women in whom there is no evidence of active Rh immunization should receive a standard dose of Rh immune globulin (RhIg) at 28 weeks gestation as prophylactic therapy. Patients who are weak D positive should be considered Rh positive, and are generally not candidates for RhIg prophylaxis.
- Sample Required: 7 ml EDTA
- Normal Test Values: See individual tests
- Analytic Time: 24 hours if weekday; 48 hours if weekend
- Days Test is Set Up: Monday through Sunday
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