Hi Colleen,
I am sorry you have to be here, but be assured we will help you in any way that we can. Please keep posting your questions and concerns.
From your first post you did not mention anything about a peg tube for feeding. Does your brother have a peg tube? Can he take any food by mouth? Have you discussed with any of the doctors about his feeding or getting a peg tube?
One form of high calorie and nutrition is a drink called Carnation Instant Breakfast Drink VHC (Very High Calorie) - 560 calories per can. During my treatment I was required to take in at least 2,700 calories a day (at least 5 cans but I did 6 cans per day). My nutritionist that was part of my team ordered these for me and charged it to my insurance. I started out drinking these but eventually had to use my peg tube as I could not swallow. If you do not have a nutritionist as part of your team, talk to your doctors about seeing one. Getting enough calories and nutrition is VERY important to the healing and recovery process.
Over the next few days you should be receiving some valuable information from a lot of caring people in this forum.