Karolinska Institutet Mar 28 2025 Early diagnosis of COPD, chronic obstructive pulmonary disease, increases the quality of life of the patient and the efficacy of available treatments. Researchers at Karolinska Institutet in Sweden have now shown that material from nasal lavage provides a basis for assessing COPD. The study, which has been published in the Journal of Allergy and Clinical Immunology , could lead to a simple diagnostic method for early assessment of COPD. Chronic obstructive