... on bronchodilatation correlated well with the change in residual volume (ΔRV), but neither measurement correlated well with the change in the ‘closing volume' measurement expressed as the ratio of phase 4/VC(%). The ΔFET did not correlate well with either ΔRV or Δ[phase 4/VC(%)]. 4. In eighty-one selected normal...

... curves were divided into phases of different slope by eye, the point at which phase 3 changed to phase 4 being nominated the closing volume. 2. In forty non-smoking healthy subjects inhalation of salbutamol was followed by significant increase in FEV 1 but FVC and closing volume did not change. 3. Change...

...D. C. Stănescu; C. Veriter; J. F. De Plaen; A. Frans; C. Van Ypersele De Strihou; L. Brasseur 1. Measurements of lung volumes, airway resistance, maximal expiratory flow rates and closing volume were made in twelve patients with chronic renal insufficiency and fluid overload, before and after...

...J. V. Collins; G. M. Cochrane; Jane Davis; S. R. Benatar; T. J. H. Clark 1. Rapid intravenous (i.v.) infusions of saline were administered to five healthy male volunteers. Measurements were made of static and dynamic lung volumes, ‘closing volume’ and pulmonary compliance before and after infusion...