Is 4l an average volume to be extracted via thoracentesis for a 55 year old male w/ ckd and walking pneumonia?

Seems a lot: Do you have evidence of volume overload elsewhere? Such as lower extremity swelling, fluid accumulation in the abdomen. I worry about congestive heart failure. Pleural effusions (fluid outside the lungs in the chest) are commonbut 4 liters seems excessive. Usually walking pneumonia does not have effusions. Bacterial pneumonia is more commonly associated. Make surer the fld was sent for study.