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Test Code FETBLD Fetal Hemoglobin Stain (Kleihauer-Betke Test) LAB7762

Test Method

Kleihauer Bedtke Staining Technique, Fetal Hemoglobin Kit;

Specimen Requirement

1 mL maternal whole blood specimen is required.


Testing is performed Monday through Sunday.

Typically completed within 24 hours after the specimen arrives
at the testing site.

CPT Code Information

85460 Coagulopathy Testing: Hemoglobin or RBCs, fetal, for
fetomaternal hemorrhage; differential lysis (Kleihauer-Betke)

LOINC Code Information

14276-0 Hemoglobin F Distribution [Interpretation] In Blood By
Kleihauer-Betke Method

Useful For

Determining the volume of fetal-to-maternal hemorrhage for the
purposes of recommending an increased dose of the Rh immune

Additional Specimen Collection Information

Collect maternal blood in EDTA purple-top. Collect as soon as
possible after delivery or prior to birth if a fetal bleed is
suspected. The minimum specimen required is 1 mL. Refrigerate the
specimen until analysis; analyze promptly.