[Guideline for diagnosis and treatment of patients with cystic fibrosis: update].

The present revision of the Guide for the diagnosis and treatment of patients with cystic fibrosis published in 2014 aims to update the knowledge about various aspects related to the clinical management of the disease, according to the scientific advances published and in development in recent years. Only new topics will be discussed here and those that, in light of the research, require modification, so the content of the previous guide remains valid in the rest of the aspects. The updated aspects range over the diagnosis of the disease due to the changes made in the sweat test, the neonatal screening and molecular biology, the update of follow-up studies, such as the Lung Clearance Index and the Nuclear Magnetic Resonance, and modifications regarding the nutritional area (diabetes secondary to cystic fibrosis) and the physiotherapy treatment and pulmonary rehabilitation.