Individual test · Labcorp 139317

Chlamydia pneumoniae, IgG, IgM, IgA

This test measures antibodies in your blood that your immune system creates to fight Chlamydia pneumoniae, a bacteria that causes respiratory infections. It helps show whether a persistent cough, pneumonia, or sinus issue is related to this specific bacterial exposure. By identifying these antibodies, doctors can differentiate this infection from other causes of respiratory illness. However, the presence of antibodies only indicates past or recent exposure and does not diagnose an active infection by itself.