Minimum fluid collection required for radiological detection of pleural effusion in lateral decubitus view is: September 2009
Ans. Amount of pleural fluid required to cause a blunted costophrenic angle discernible on chest radiography is more than 300 ml. A chest computerized tomography scan is more sensitive than a simple chest x-ray and is often used for assessment of loculated effusions because, in some instances, up to 500 cc of loculated fluid can be obscured behind the dome of the diaphragm
15 ml
25 ml
35 ml
45 ml