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PRENATAL SCREEN (10005511, 10005512, 10005502)
Test Mnemonic:


Specimen Requirements:
Test Included:

ABO, Rh, and IAT;  positive antibody screen results will require additional testing for antibody identification and potential titer testing.


Routine venipuncture


Lavender-topped tube (EDTA)

Minimum Volume:

3mL;  additional specimens may be required for antibody identification or titer


Ambient temperature on day of collection; refrigerate if delayed

Causes for Rejection:

Specimen improperly labeled, requisition incomplete, serum separator tube, gross hemolysis, frozen sample, failure to identify phlebotomist and verifier.

Reference Range:

O, A, B, or AB blood group;  Rh positive or negative;  negative antibody screen.

Turnaround Time:

Overnight if antibody screen is negative.




Specimens are accepted 24 hours per day at the Blood Bank lab, 4.404 Clinical Services Wing (CSW).


Prenatal Blood Bank Screen;  ABO Rh and IAT;  Blood Group and Antibody Testing

Clinical Indication:

Blood Bank testing performed as part of routine prenatal care to determine candidacy for antenatal Rh Immunoglobulin administration and to detect clinically significant antibodies which may impact the health of the fetus or present complications for potential transfusion at the time of delivery

CPT 4 Code:

86900, 86901, 86850


All requests must include requesting physician’s name and ID  number, patient’s complete name, UH number, current account number,  patient location, clinical information/diagnosis, identity of phlebotomist and verifier, and date/time of sample collection.   The specimen must be labeled with the patient’s full name and UH number.  Specimens should be transported to the laboratory in a biohazard specimen bag with the request form in the pocket of the bag.  All information must be complete and legible on the specimen and the requisition.

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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