What a situation! Wishing you luck. It is possible to make a chick survive without absorbing the sac, but it's a very low possibility. My chicks sac wasn't fully absorbed, but I got it out anyway and syringe fed it sugared water - a good syringe to use is the one that comes with a baby's nurofen medicine bottle from chemists, it will be in the box witht he medicine. The syringe has no needle, or not plastic point, just a small hole with i put over the chicks beak momentarily until it drank.