Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . The patient is intubated , the endotracheal tube terminates approximately 5 cm above the level of the carina . A Swan - Ganz catheter is in - situ , this appears to have been withdrawn slightly when compared to the prior study but appears in appropriate position . There are bilateral chest tubes as well as the mediastinal drain in - situ . A nasogastric tube is unchanged in position . . No pneumothorax or pleural effusion seen . There are patchy airspace opacities throughout both lungs with more prominent on the right than the left likely reflecting asymmetric pulmonary edema . This is grossly unchanged compared to the prior studies .
    OUTPUT:
    
Interval placement of multiple chest tubes , no definite pleural effusion or pneumothorax seen .