Final answer:
Pulmonary edema is excess fluid in the air sacs of the lungs, causing difficulty breathing and chest pain. It is a serious condition that requires immediate medical attention.
Step-by-step explanation:
Pulmonary edema is excess fluid in the air sacs of the lungs, a common symptom of heart and/or kidney failure. People with pulmonary edema likely will experience difficulty breathing, and they may experience chest pain. Pulmonary edema can be life threatening, because it compromises gas exchange in the lungs, and anyone having symptoms should immediately seek medical care.