@carolman210 , Fluid can be common with any lung related trauma. Generally, a procedure called a Thoracentesis is performed to remove fluid around your lung. I haven't had this done, but it's generally considered to be well tolerated.

From Mayo's web site:
"Thoracentesis. In this procedure, a local numbing agent (anesthetic) is injected between your ribs to the area where fluid was seen on your imaging studies. Next a needle is inserted through your chest wall between your ribs to remove fluid for lab analysis. Removing fluid can also help you breathe better. The needle is usually inserted with the help of ultrasound guidance."