I found this to be a pretty good guide (https://outdoordogworld.com/dog-hiking-first-aid-guide/), but recently after our dog seemed to be limping a bit as we neared the top of a mountain, we were wondering what we would do to get her back down if she couldn't do it herself.  One of our thoughts has always been to shift the load from two packs to one so that we could carry her down in a backpack in order to keep our hands free.  Any other thoughts?