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.
What is Cold Urticaria? Cold urticaria is a skin reaction to the cold temperatures, in which red and itchy bumps appear on the skin. The intensity of the symptoms depends on the actual stimulus (cold weather, cold object etc.) but also from one patient to the other, ranging from minor to severe reactions.