Final answer:
Warmed specimens of blood from individuals with Mycoplasma pneumonia infection (atypical pneumonia) may exhibit cold agglutinins, which are antibodies produced in response to Mycoplasma pneumoniae infection.
Step-by-step explanation:
Warmed specimens of blood from individuals with Mycoplasma pneumonia infection (atypical pneumonia) may exhibit cold agglutinins. Cold agglutinins are antibodies produced in response to Mycoplasma pneumoniae infection. These antibodies bind to red blood cells at temperatures below normal body temperature, causing them to clump together (agglutinate).