<prompt> Which of the following is markedly decreased in restrictive lung disease -FVCFEVlFEV1FVCRV  <response>: Ans. is a i.e., FVC Pulmonary function studies in Restrictiv e lung diseaseo Forced vital capacity FVC-Decreased more than obstructiono Forced expiratory volume in 1 second FEV1-Decreased in proportion to FVCo FEV1FVC-Near normal or increasedo Forced mid expiratory flow rate-Reducedo Total lung capacity-Decreasedo Residual volume-Generally decreasedo Functional residual capacity7-Decreased 