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

Test Method

Kleihauer Bedtke Staining Technique, Fetal Hemoglobin Kit;
Simmler

Performance

Testing is performed Monday through Sunday.

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

Useful For

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

Specimen Requirement

1 mL maternal whole blood specimen is required.

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

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.