IVC - inspiratory vital capacity
The volume change of the lung between a maximal expiration to residual volume and a full inspiration to total lung capacity. The inspiratory vital capacity is assessed during an inspiratory maneuver, which is not performed forcefully.
The largest of 3 technically satisfactory maneuvers, which differ by no more than 5% or 150 mL (the larger of the two) from the next largest IVC, should be reported. If the difference is larger, then perform up to 8 measurements; if the repeatability criterion is still not met then report the largest IVC with a note that reproducible measurements could not be obtained.
- Quanjer PhH, Tammeling GJ, Cotes JE, Pedersen OF, Peslin R, Yernault JC. Lung volumes and forced ventilatory flows. Official Statement of the European Respiratory Society. Eur Respir J 1993; 6 suppl. 16: 5-40. Erratum Eur Respir J 1995; 8: 1629.
- Miller MR et al. Standardisation of spirometry. ATS/ERS task force: standardisation of lung function testing. Eur Respir J 2005; 26: 319-338.