lung pathology 2-SP2 questions with accurate answers (graded A+)

Albuterol inhalation aerosol is used to treat wheezing, shortness of breath, and troubled breathing by asthma. It is delivered via oral inhalation - Answers-bronchodilators 50-year-old man dies of a respiratory illness that had been characterized by dyspnea, cough, and wheezing expiration of many years' duration. Initially episodic, his "attacks" had increased in frequency and at the time of death had become continuous and intractable. At autopsy, which of the following is the most likely histologic finding in the lungs? a) Bronchial smooth muscle hypertrophy with proliferation of eosinophils b) Diffuse alveolar damage with leakage of protein-rich fluid into alveolar spaces c) Dilation of air spaces with destruction of alveolar walls - Answers-a) Bronchial smooth muscle hypertrophy with proliferation of eosinophils incomplete expansion of the lung or collapse of a previously inflated lung leading to an airless parenchyma. This can be congenital or aquired. - Answers-atelectasis (collapsed lung) caused by obstruction by a tumor by secretion of or exudates within the smaller bronchi. Can be seen in bronchial asthma, chronic bronchitis, and bronchiectasis. Therefore, the mediastinum is shifted TOWARDS the side of the affected lung. - Answers-obstructive atelectasis