
We have unfortunately had a few - Bassets tend to go 'ouch mum ..... you arranged to put them there = you get them out'. I make up some scrambled egg, poached fish or chicken while she's with the vet, to offer mum during the evening after she's come home. I take a box with a warm hot water bottle in it for the puppies so they don't get chilled on the way home (how far away from the vet's surgery are you?). And I have the brood lamp on ahead of taking mum into the whelping box, and then go back to the car, for the puppies. I have tended to find mine will walk to the car, but sometimes zonk out enroute home, making getting them out and into the house 'difficult'.
Once indoors, I put one or two puppies only onto the teats so not to overwhelp mum - actually if mum is kind-of zonked out, it's an advantage because they can all get a good innings at the milk bar before mum is fully with it. I've never bothered with placenta marking the puppies because by the time she gets it together, they'd been nursing so mine have just licked them and accepted them. Even with the most difficult of whelping/sections - Bassets are generally very maternal. And yes, the milk has come down with nursing, although newborn puppies don't need lashings of milk in any case. It does help to have something like Esbilac on hand, just in case.
I'll offer mum some of the food I've made up, but am not unduly concerned if all mum needs is rest, warmth and quiet.
You will have to clip the pointy ends of the puppies' nails so they don't catch on mum's stitches - and keep an eye on the wound to make sure they aren't disturbing the stitches.