Which of the following is the cause of sudden and unexpected onset of dyspnea at rest: September 2011
Correct Answer: Spontaneous pneumothorax
Description: Ans. B: Spontaneous pneumothorax Sudden and unexpected dyspneic episodes at rest can be associated with pulmonary emboli, spontaneous pneumothorax, hypercapnea secondary to breath holding, or anxiety Pneumothorax: Presence of gas in pleural space Sudden dyspnea followed by cough and chest pain is seen Primary Spontaneous pneumothorax: occurs without antecedent history of trauma to thorax Common in males/ smokers - Rupture of subpleural bleb is a common cause Secondary spontaneous pneumothorax occurs in presence of underlying lung pathology A traumatic pneumothorax results from penetrating or non-penetrating injury Intrapleural pressure is equal to atmospheric pressure in open pneumothorax
Category:
Surgery
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now