Voluntary isolation, what do I need to remember?

[blibblibs]

So DM is currently in hospital and I'm trying to plan incase it's bad news.
She is in her 70's and usually travels to us to spend a week at Christmas, this had obviously already been cancelled and we were just going to have to do Skype etc but if it's the bad news we're expecting I don't want her to be alone for all of Christmas.
I'm thinking if I pull the DC out of school a week early (11th Dec) and finish work then, which should hopefully be doable, we could self isolate and be safe to visit anytime after the 25th December?
If that's correct, we could travel on boxing day (she's 5/6 hours away) and as long as we don't stop for fuel, it's a diesel car so will be OK, be won't be a risk to her.
So if I've got my maths right and it's not a ridiculous idea then what might I be forgetting. I'll be inside from the 11th Dec and will need stuff for Xmas lunch. Can buy everything in advance just about but will need milk, cream bread etc.
Ive never done home delivery, have I missed the boat for slots now? Can I even book this far in advance?
Or is it just a silly panicked idea while I sit very impatiently waiting for her test results?
Would appreciate you picking holes for me.

I hope your mum gets some good news. I would probably have the same plan as you in your situation.

In terms of booking delivery slots, i think it depends on the supermarket, but I think Tesco are releasing theirs to non-delivery pass holders next week. Have a Google on that one.

For milk, grab some uht cartons or freeze fresh milk if you have space. Bread either freeze or make it yourself as you need it. Fruit can be frozen or dried, and most veg can be canned or tinned. I'd plan your meals for those two weeks so you know what you need to get in and how you would do it. Don't forget snacks, toiletries, any medications etc.

One question: do you think you and your DC can drive for 6 hours (maybe longer at Christmas) without stopping? Even if you were to contract it at a service station you wouldn't be infectious that day, so you could maybe take a change of clothes and hand gel to use before entering her home and have a shower before seeing her just to be extra safe?

You have a bit of time to decide what you want to do, and you'll know more about her situation after the tests, so I'd hold off on making your decision and just focus on your family.