<Tr> <Th> VC </Th> <Td> Vital capacity: the volume of air breathed out after the deepest inhalation . </Td> </Tr> <Tr> <Th> V </Th> <Td> Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange calculation, the symbol TV or V is used .) </Td> </Tr> <Tr> <Th> FRC </Th> <Td> Functional residual capacity: the volume in the lungs at the end - expiratory position </Td> </Tr> <Tr> <Th> RV / TLC% </Th> <Td> Residual volume expressed as percent of TLC </Td> </Tr>

In lung function testing what is the definition of fvc and fev1