Boucle yarn is a loose, three ply yarn with a characteristic curly appearance. Used in weaving, knitting, and crocheting, boucle...
Cold agglutinins are antibodies that cause clumping or agglutination of RBCs at cold temperatures in individuals with certain conditions or who are infected by particular organisms. Cold agglutinins are associated with Mycoplasma pneumoniae infection. M. pneumoniae has i antigen specificity to human RBC membranes. Fetal cells largely contain i antigens, but by 18 mo most cells carry the I antigen.
Autoimmune hemolytic anemia is classified as primary or secondary and is subclassified according to autoantibody type. Primary cold agglutinin disease is characterized by a clonal lymphoproliferative disorder.Secondary cold agglutinin syndrome results from a systemic diseaseâinfection or malignancy.