Laboratory Services
Antibody Screen, Prenatal
Print this pageUpdated Test Information:
| Test Description |
Antibody Screen, Prenatal
|
|
|---|---|---|
| Synonym(s) |
Indirect Coombs |
|
| Test ID |
ABS
|
|
| General Information |
Detects presence of unexpected antibodies directed against non-ABO red blood cell antigens during pregnancy. An antibody screen results of expectant mothers may help identify potential for hemolytic disease of the fetus/newborn. For antibody screening for any other patient population, please reach out directly to a local blood bank. |
|
| Specimen Type |
Whole Blood |
|
| Specimen Requirements |
2 Lavender |
|
| Alternate Specimen Type |
None |
|
| Specimen Collection / Processing Instructions |
Lavender - The specimen should be tested as soon as possible after collection. If testing is delayed, EDTA specimens should be stored at 2 to 8°C. Draw an extra lavender tube in case of Antibody ID reflex |
|
| Minimum Sample Volume |
6 ml |
|
| Pediatric Min. Volume (if applicable) |
Not applicable |
|
| Stability |
Refrigerated 10 days |
|
| Unacceptable Specimen Conditions |
Grossly hemolyzed, icteric, or lipemic samples. Frozen samples. Bacterial contamination. Samples from patients other than prenatal. |
|
| Limitations |
Abnormal plasma proteins, cold autoagglutinins, positive direct antiglobulin test, and, in some cases, bacteremia may interfere with test interpretation. |
|
| Methodology |
Hemagglutination/gel filtration |
|
| Estimated TAT |
1-3 days |
|
| Testing Schedule |
Monday-Friday |
|
| CPT Code(s) |
86850 |
|
| Reference Range |
Negative |
|
| Reflex Conditions |
If antibody screen is positive, antibody identification and titer will be performed. Please allow additional time for testing to be completed. |
|
| Performing Lab |
Incyte Diagnostics |
|
| LOINC Code(s) |
890-4 |
