Test directory: Kleihauer-Betke (Fetal Cell Screen)

Ordering Code430
Test NameKleihauer-Betke (Fetal Cell Screen)
AliasAcid Elution for Fetal Hemoglobin
Fetal Hemoglobin Stain
Fetal-Maternal Hemorrhage Test
Preferred SpecimenWhole Blood
Preferred ContainerEDTA, K2 (Lavender)
Optimum Volume3 mL
Collection InstructionsMix well
EDTA tubes must be filled with at least 50% of the draw volume.
Handling InstructionsRefrigerate specimen if transport time >6 hours.
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityAmbient: 6 Hours
Refrigerated: 24 Hours
Rejection CriteriaFrozen, Hemolyzed, Clotted, Over filled tube, Under filled tube, Cord Blood Specimens, Specimen older than stabililty limits, previously centrifuged ("spun").
Avail. StatYES
Analytic Time1 Day
MethodologySimmler Acid Elution and Fetal Cell Stain

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Fetal/Adult RBC ratioALL< 0.0030< 0.0030
Indicated Volume Fetal RBCALL< 15< 15mL
RhoGAM, if indicatedALLvial
RhoGAM calculation... RhoGAM calculation assumes a maternal blood volume of 5 L.
See report.