Prenatal ABO/Rh and Antibody Screen, Outside Client

ABO testing is performed to determine if patient has blood group of A, B, O or AB.

Rh testing is performed to determine if patient is Rh(D) Positive or Rh(D) Negative. Both ABO and Rh testing establishes the blood type of the patient.

Antibody Screen testing is performed to detect clinically significant antibodies to RBC antigens, which are defined as those that have been previously associated with hemolytic disease of the fetus and newborn, hemolytic transfusion reactions or decreased RBC survival. Typically, these antibodies react at 370C or AHG phase.

Testing may be performed on automated analyzer or standard tube method.

"This test is orderable for approved clients only."

Preferred: 6 ml PINK TOP (EDTA) tube

Also acceptable: 6ml LAVENDER TOP (EDTA)

Specimen verification and collection:

• Patient ID must be performed in the presence of the patient by the person collecting the specimen.
• Label specimen in the presence of the patient.
• Write collection date and time on specimen label. Printed collection date and time on label is acceptable as well.

For non UWMC clients: Specimen should be tested at UWMC Montlake Transfusion Services Lab as soon as possible after collection. If testing is delayed, the specimen should be stored at 2-8 C.

Batch and send specimen separate from other testing, indicate for “For Transfusion Services” on bag.
Complete UWMC TSL Immunohematology Consultation Form and send with specimen.

SPS: Receive batch from non UWMC clients and immediately send specimen to NN601, tube station: 361 for testing.