Antibody Screen

Alternate Name: Ab_Screen_LC

  | Indirect Coombs'; Indirect antiblobulin test

SAL Code:




Turn Around Time:

1-2 days


Blood Type

Performing Laboratory:

LabCorp of America


Antiglobulin test

Specimen Requirements:

Primary Tube:


Primary Substance:

Whole Blood EDTA

Rejection Criteria:

Gross hemolysis; improper labeling

Clinical Info:

Detect atypical IgG antibodies prior to transfusion or during pregnancy. The technique is designed specifically to detect IgG antibodies, though on occasion, some IgM antibodies may also be detected. Antibodies detected by the antibody screen will be subsequently identified, and a titer performed if the antibody identified is considered to be clinically significant during pregnancy.

Sample Collection:

Collect patient samples using standard phlebotomy techniques. Click here for additional collection instructions.

Test Limitations:

No antibody screening test will detect all antibodies. This method may not detect IgM antibodies or antibodies to low frequency antigens. Extremely low-titered antibodies may be detected but may be too weak to identify.

Specimen Handling Instructions:

Specimens should be tested as soon as possible or within 72 hours of collection. Samples that cannot be tested immediately should be stored at 2°C to 8°C. Do not freeze red cells.

Test Information: