A patient with a history of chronic smoking presented with breathlessness for the last one year. On examination, there were bilateral rhonchi in the chest. The Chest X-ray was suggestive of hyper-inflated lung field. Which of the following parameters of the pulmonary function test are consistent with the diagnosis of chronic obstructive pulmonary disease in this case? 1. Decreased FEV1 2. Increased diffusion capacity 3. Increased residual volume 4. Decreased peak expiratory flow rate Select the correct answer using the code given below:
1, 3 and 4
COPD is characterized by decreased FEV1 due to airflow obstruction, increased residual volume due to air trapping, and decreased peak expiratory flow rate. Diffusion capacity (DLCO) is typically decreased (especially in emphysema-predominant COPD), not increased, making statement 2 incorrect. Hence statements 1, 3 and 4 are correct.
Important Questions from COPD
- The distance walked in 6 minutes is an indirect measure of which of the following variables of the 'BODE Index' which is used to assess the prognosis in chronic obstructive pulmonary disease?
- The most common cause of chronic type II respiratory failure is:
- Which of the following are categorised under obstructive lung disease ?
1. Bronchial asthma
2. Bronchiectasis
3. Bronchiolitis
4. Pulmonary sarcoidosis
Select the correct answer using the code given below: - Risk factors for development of COPD include which of the following ?
1. Tobacco smoking
2. Recurrent infection
3. Coal dust exposure
4. High socio-economic status
Select the correct answer using the code given below: - A 65-year-old male smoker has been diagnosed with Chronic Obstructive Pulmonary Disease (COPD). On pulmonary function testing, the $FEV_1/FVC < 0.7$ and $FEV_1 = 42\%$ of predicted. The severity of airflow obstruction in this patient as per GOLD criteria is :
