Malik A, Yunus F, Harahap F, Rochismandoko. J Respir Indones. 2010;30(3):159-65. Introduction. Diabetes mellitus (DM) is a metabolic disorder. DM affects various organs of human body. Hyperglycaemic state can reduce lung function by decreasing elastin proteins and lung surfactans. Moreover, it can cause diffusion perfusion disorders. Haemoglobin A1c (HbA1c) describes previous 3 months of patient’s […]