title: Lung function in infants and young children: functional residual capacity, tidal volume, and respiratory rats.
abstract: Functional residual capacity was measured by the closed-circuit, helium-equilibration method in 121 normal children 3 months to 6 years of age. Prediction equations for functional residual capacity for normal children of this age range are presented for the first time. This study demonstrates that some aspects of lung functiok can be studied relatively conveniently in young children.
mesh_terms: D001827:Body Height; D002648:Child; D002675:Child, Preschool; D005260:Female; D005652:Functional Residual Capacity; D006371:Helium; D006801:Humans; D007223:Infant; D008168:Lung / Q000502:physiology*; D008297:Male; D012123:Pulmonary Ventilation; D012119:Respiration
chemical_list: D006371:Helium