I'm going to try to make this brief

I am an ER nurse, I knew I was going to be working a 24 hour shift so I knew Dex wouldn't get much exercise at home alone with my wife. So my father agreed to take him overnight and then to the river for a long walk. My father has watched him many times before, so I thought it was okay.

I get off work, listen to my voicemail and learn that my father tied dexter into the back of his pickup, drove to the river (.5 miles away to trailhead) Dex jumped out, scraped his nails on the ground (hanging from his leash). We tried this before without the vehicle moving, he jumped out then too. I have stressed this to him on several occasions, but he is my father so he thinks he knows best (he has owned dozens of dogs in his life).

\I picked him up about 4 hours after the incident. I cleaned then dressed the wounds, and he was very calm, but still his happy go lucky self.

Most of them have been scraped pretty bad, not all began to bleed. It just looks like he had a very slopy nail clipping. One claw/nail I am worried about, it is shaved down to his paw.  He will let me touch it, but it seems a small portion of it has broken off from the rest of the nail (which is painful to touch).
 

He has no other injuries, just the nails.

are there nails similar to ours, and the portion seperated from the base of the nail will eventually die off?  What should I be looking out for? I could take him to the vet if I need to but I would prefer to treat it at home if possible. Any advice?

Thanks,

Jace

I will see if he will allow me to get a picture of that one nail. I will post it here if I can get a decent picture.

The quick appears to be visible, thought I could be mistaken.

He went out for a few minutes for the night and it is now bleeding, still trying to get it to stop bleeding.

 More than likely the quick is exposed since it bleeds so easily.  I would clean it and then wrap it.  If you have gauze and vet tape, wrap the foot in the gauze and then wrap the vet tape around the foot and gauze.  If not, then use a clean sock and tape (duct tape works well).  Here is a picture of one of my dogs with her foot wrapped after she broke a toenail down to the foot.  The vet removed it and then wrapped the foot.  You can see how it was wrapped. The white is gauze and the green is the vet wrap.