I just had mine removed last week from colon surgery . The doc said it was white blood cells blood and infection . It was bad at first but every day it got a little better . And it's a weird feeling when they take it out ! So take a deep breath right before they start to pull it out and exhale slow when they start . I know it sound funny but it helps .
The fluid that comes out of a chest tube comes from inside the lung. Chest tubes are put in place when a lung collapses and the lung has no air left inside of it. At first it will look like a lot of fluid and as the lung begins to heal there will be less & less fluid and the need for oxygen will be less. See how many liters of oxygen are needed for the oxygen rate to stay between 91-96. You get this number when they put that little gadget on the patient's finger. I hope this helps you. I know all of this from 1st hand experience. If you have any more questions please comment & I will try to help you. Good health to the patient!