Pleural Effusion and Pneumothorax Quiz

What is the most common cause of transudative pleural effusion?

• Tuberculosis

• Congestive heart failure

• Pulmonary embolism

• Rheumatoid arthritis

What is a hallmark feature of exudative pleural effusion according to Light's criteria?

• Pleural fluid protein/serum protein ratio < 0.5

• Pleural fluid LDH/serum LDH ratio > 0.6

• Pleural fluid pH > 7.5

• Pleural fluid glucose > serum glucose

Which imaging modality Is most sensitive for detecting pleural effusion?

• Chest X-ray

• CT scan

• Ultrasound

• MRI

Which of the following Is NOT a feature of transudative pleural effusion?

• Low pleural fluid protein

• High pleural fluid LDH

• Caused by systemic conditions

• Bilateral effusions are common

What is the pleural fluid appearance in empyema?

• Straw-colored

• Clear and odorless

• Turbid and foul-smelling

• Hemorrhagic

Which of the following laboratory findings is most consistent with pleural effusion due to tuberculosis?

• Low glucose and high LDH

• Predominance of neutrophils

• High adenosine deaminase (ADA) levels

• Low protein content

What is the recommended initial diagnostic procedure for pleural effusion?

• CT-guided biopsy

• Bronchoscopy

• Thoracentesis

• Pleurodesis

Which of the following Is a common cause of exudative pleural effusion?

• Cirrhosis

• Nephrotic syndrome

• Bacterial pneumonia

• Congestive heart failure

Wich biochemical test Is most useful for diagnosing parapneumonic effusion?

• Pleural fluid protein

• Pleural fluid LDH

• Pleural fluid glucose

• Pleural fluid pH

In systemic lupus erythematosus (SLE), pleural effusion is typically associated with which of the following findings?

• Neutrophil predominance in pleural fluid

• Low pleural fluid complement levels

• High pleural fluid triglycerides

• Low pleural fluid ADA levels