Marked decreased FVC and FEV1/FVC ratio are seen in -
Ans. is 'a' i.e., Asthma Differences between Obstructive and Restrictive respiratory DiseasePFT resultObstructive PatternRestrictive patternFEV1Decreased (< 80% predicted) (Decreased out of proportion to FVC)Decreased (May be preserved)(Decreased in proportion to FVC)FVCDecreased (May be preserved)Decreased (< 80 % predicted)FEV1/FVC (FEV1%)Decreased (< 0.7)Normal or Increased (> 0.7)FEF25-75< 50% predictedDecreased in proportion to loss of lung volumeTLCNormal or elevatedDecreasedDLCONormalDecreased in EmphysemaDecreased in intrinsic restrictive lung disease Normal in neuromuscular or musculoskeletal restrictive disease
Asthma
Kyphosis
Scoliosis
Fibrosis of lung
Asthma