I say, do it! What have you got to lose? I would have rung her neck by now to relieve her of her misery!
If she is so dehydrated as to be listless, then what have you got to lose here? I, too, am a nurse and I have also heard of admin. fluids SQ to animals. Hardly anything done to animals is a sterile procedure in the field, except surgery of some kind and even that is difficult. It would be just like inserting a needle into a human, just swab with alcohol for 30 seconds. No longer than the needle will be inserted, she shouldn't stand too much of a chance of getting some raging infection. Most vets won't treat chickens, so people have to do what they have to do, sometimes. Go for it with the NS or D5 LR.
If she is so dehydrated as to be listless, then what have you got to lose here? I, too, am a nurse and I have also heard of admin. fluids SQ to animals. Hardly anything done to animals is a sterile procedure in the field, except surgery of some kind and even that is difficult. It would be just like inserting a needle into a human, just swab with alcohol for 30 seconds. No longer than the needle will be inserted, she shouldn't stand too much of a chance of getting some raging infection. Most vets won't treat chickens, so people have to do what they have to do, sometimes. Go for it with the NS or D5 LR.