Final answer:
Chest CTs are indicated in pleural effusions because they provide detailed images of the chest, allowing for an accurate diagnosis and assessment of the underlying cause. CT scans can detect pneumonia, a common cause of pleural effusion, as well as differentiate between different types of effusions.
Step-by-step explanation:
Chest CTs (computed tomography scans) are indicated in pleural effusions because they provide detailed images of the chest, allowing for a more accurate diagnosis and assessment of the underlying cause of the effusion. CT scans can help identify the presence of any abnormalities, such as tumors or infections, that may be causing the effusion.
For example, a CT scan can detect pneumonia, which can cause pleural effusion. The scan can show areas of consolidation in the lungs, indicating the presence of infection and inflammation.
In addition, CTs can help differentiate between different types of pleural effusions, such as transudative (caused by fluid imbalance) or exudative (caused by infection or inflammation). This information is crucial for determining the appropriate treatment for the patient.