USPS stands for United States Postal Service. (regular mail). UPS stands for United Parcel Service. This is a courier service and offers many different levels of service with a wide range of delivery times and prices.
Fluid in the lungs is a broad term to describe two possible conditions that may give characteristic symptoms, like a bubbling sound in the lungs (rales) when breathing. The fluid accumulation may be inside the lung (pulmonary edema) or outside the lung (pleural effusion), in the space between the lung and chest wall.
Overview of Pleural Effusion. Fluid that accumulates in the pleural space because of trauma or disease is called pleural effusion. This condition may result from heart failure, cancer, pulmonary embolism, or inflammation.1  If blood is in the accumulating fluid, the condition is called hemothorax;; 2  if pus is present, it is called empyema;.verview of Pleural Effusion. Fluid that accumulates in the pleural space because of trauma or disease is called pleural effusion. This condition may result from heart failure, cancer, pulmonary embolism, or inflammation.