When I was a resident in internal medicine many years ago, I saw an elderly woman who came to the ER complaining of chest pain and shortness of breath. She had a history of heart disease. When I listened to her chest, the crackles I heard emanating from her wet lungs told me she had congestive heart failure. I treated her chest pain and gave her diuretics to help her get rid of the water that was making her drown in her own bodily fluids. After an hour or two of treatment, she felt better. I decided to send her home.
But as I did, a little voice in the back of my head told me that was a bad idea.