<prompt> Which of the following statement isare true about Obstructive lung disease ?mMRC dyspnea scale ,grade 2 includes shoness of breath when hurrying up inclinesDecreased FEV1FVC ,TLC is increasedNormal PEFR and decreased in Lung volumeRoflumilast is introduced in management of COPD in Group C  <response>: Acute asthma and Emphysema- TLC due to air trapping Myasthenia gravis- TLC RV Obstructive Restrictive in airflow Lung volume - Expiratory -Inspiratory COPD Asthma Bronchiectasis ILD Scoliosis NM causes FEV1- FVC- Normal or TLC - Normal or PEFR Normal PEFR Management of COPD Group A Low Risk, low symptom Bronchodilator Group B Low Risk, High symptom LABALAMA, if failed- LAMALABA Group C High Risk, Low symptom LAMALABA or LABAICS Group D High Risk, High symptom LAMALABAICS symptoms persists Phosphodiesterase inhibitor Roflumilast or Macrolides mMRC DYSPNOEA SCALE for COPD patients Grade Impact 1 Incline Breathlessness on going upstairs 2 Slow walk than peers Breathlessness on walking in straight surface 3 Stops Keeps on stops walking in between 4 Too breathless to go out of his house GOLD Global Initiative for Obstructive Lung Disease classification 