Also known as KB test, KB stain, Kleihauer test, acid elution test, Kleihauer–Betke stain, Kleihauer-Betke test, Kleihauer-Betke stain
blood test measuring fetal hemoglobin transferred from a fetus to a mother's bloodstream, often performed on Rh-negative mothers to determine the required dose of Rho(D) immune globulin to prevent Rh disease in Rh-positive children
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).