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[Respiratory function assessment in cooperative patients. Part I. Spiromery and bronchodilator reversibility testing].

Assessment of respiratory function is the principal tool in the study of patients with lung diseases, allowing physiopathological alterations to be detected, and the severity of the process, its clinical course, and treatment response to be identified. Nowadays, assessment of respiratory function is among the investigations used by Spanish pediatricians. The Techniques Group of the Spanish Society of Pediatric Pneumology undertook the design of a protocol for the study of pulmonary function in children that would incorporate the most recent published consensus documents on basic pulmonary function assessment (spirometry and bronchodilator reversibility testing) and on airway hyperreactivity evaluation using nonspecific provocation tests. The aim of this protocol is to provide a guide to good clinical practice until new changes, based on scientific evidence, are produced.