Which of the following is a chronic inflammatory disease of the airways that causes episodes of wheezing, breathlessness, chest tightness, and coughing?

Correct Answer: A

Rationale: A: Asthma is the correct answer because it is a chronic inflammatory disease of the airways characterized by symptoms like wheezing, breathlessness, chest tightness, and coughing. This condition is often triggered by various factors such as allergens, exercise, or respiratory infections. Asthma involves inflammation and narrowing of the airways, leading to the symptoms mentioned. B: Bronchitis is incorrect as it refers to inflammation of the bronchial tubes, which can be acute or chronic, but it does not typically present with all the symptoms listed in the question. C: Pneumonia is incorrect as it is an infection of the lungs caused by bacteria, viruses, or fungi, and does not typically cause chronic inflammation of the airways. D: Emphysema is incorrect as it is a type of chronic obstructive pulmonary disease (COPD) characterized by damage to the air sacs in the lungs, leading to difficulty breathing, but it does not typically present

Correct Answer: A

Rationale: The correct answer is A: Adenocarcinoma. This type of lung cancer begins in the cells lining the bronchi and bronchioles. Adenocarcinoma is the most common type of lung cancer and often affects non-smokers. It is characterized by the growth of glandular cells in the lining of the lungs. B: Small cell lung cancer typically originates in the bronchi, but it is characterized by small, round cells and tends to grow and spread quickly. C: Squamous cell carcinoma starts in the squamous cells lining the airways and is associated with a history of smoking. D: Mesothelioma is a cancer of the mesothelial cells that line the lungs, not specifically the bronchi or bronchioles. It is commonly linked to asbestos exposure.

Correct Answer: A

Rationale: The correct answer is A: Emphysema. Emphysema is a condition where the lung's alveoli are permanently enlarged and damaged, causing shortness of breath. This occurs due to the destruction of the alveoli walls, leading to decreased surface area for oxygen exchange. This results in difficulty breathing and reduced oxygen supply to the body. Bronchitis (B) is inflammation of the bronchial tubes, not alveoli damage. Atelectasis (C) is the collapse of lung tissue, not enlargement. Pulmonary fibrosis (D) is scarring of lung tissue, not alveoli enlargement.

Correct Answer: A

Rationale: The correct answer is A: Bronchoscopy. Bronchoscopy involves inserting a tube with a light and camera into the airways to examine the lungs and collect samples. It allows visualization of the airways, biopsy of lung tissue, and collection of samples for further analysis. Thoracentesis involves removing fluid from the pleural space, lung biopsy involves taking a tissue sample from the lung, and a chest X-ray is a radiographic imaging technique that shows the structures in the chest but does not involve direct visualization or sampling of the airways.

Correct Answer: A

Rationale: The correct answer is A: Pneumothorax. Pneumothorax is the presence of air or gas in the pleural space, causing the lung to collapse. This occurs when air enters the pleural space due to trauma or a lung condition. Pulmonary embolism (B) is a blockage of the artery in the lung by a blood clot. Pleural effusion (C) is the accumulation of fluid in the pleural space. Atelectasis (D) is the collapse of a part of or entire lung due to blockage or pressure. Therefore, the correct answer is A as it specifically describes the condition of air in the pleural space causing lung collapse.