Preferred Label : Erythrocytes.fetal/2000 erythrocytes:NFr:Pt:Bld:Qn:Kleihauer-Betke;
LOINC status : ACTIVE;
LOINC display name : RBC.fetal/2000 RBC Kleihauer-Betke method (Bld);
LOINC long common name : Erythrocytes.fetal/2000 erythrocytes in Blood by Kleihauer-Betke method;
LOINC short name : Fetal RBC/2000 RBC NFr Bld Kleih Betke;
LOINC description : A blood test to measure the amount of fetal hemoglobin (Hb F) transferred from a fetus
to a mother's bloodstream, usually performed on Rh negative mothers to determine the
required dose of immune globulin (RhIg) to inhibit formation of Rh antibodies in the
mother and prevent Rh disease in future Rh positive children. In a newborn, half or
more of the hemoglobin is fetal hemoglobin. The concentration of Hb F falls rapidly
and by the age of one to two years it is less than 1%. [Miale, J.B., Laboratory Medicine
Hematology, 6th ed. C.V. Mosby, St. Louis (MO) 1982, p 608.)] The Association of Blood
Banks recommends counting adult and fetal erythrocytes in as many fields as required
giving a total count of at least 2000 cells. Then calculate percent fetal cells in
the total counted. [Technical Manual. American Association of Blood Banks, 16th ed.
Arlington (VA) 2008, pp 936-937] This term was created for, but not limited in use
to, the Fetal Hemoglobin Sure-Tech test kit. This assay is similar to term 48556-5
except that 2000 cells are counted rather than 1000 cells.;
Origin ID : 75373-1;
UMLS CUI : C3870529;
Has component
- Has method
- Has property
- Has system
- Has time aspect
- Semantic type(s)
