7/10 joy is in hospital 3rd time

Hi everyone. Joy had to go to the hospital yesterday via ambulance. I was trying to get her up to go for her blood transfusion and she collapsed. At the hospital we found out her hgb was 6! She was so weak and pale. They gave her two units along with other stuff. Her oncologist wants to hold off treatment until she gets her strength back. She is so thin under 100 pounds. I'm getting very scared for her. She doesn't eat much and she's not coherent a lot of the time. Any bit of advice or words ofhope would be greatly appreciated. I feel like her oncologist has given up. Thank you all very much. Jennifer