Yes, pedialyte is a good choice if you don't keep powdered electrolytes on hand.
Karo can be given a few drops at a time. 1 day - about four weeks stick with Karo light. Karo dark is safe for older chicks.
Poly-vi-sol a children's vitamin twice a day is useful - the NO IRON kind.
Cooked egg is also useful.
Don't use raw honey - bad bacteria.
Don't use sugar water - often causes pasting and diarrhea.