Decide who can act the moment something goes wrong
Emergency care while you are abroad only works if somebody local can act without waiting for you to wake up in another time zone. Choose a primary person — your sitter, boarder, or a nearby friend who knows your dog — and a backup who can step in if the first cannot be reached. Tell both people, before you leave, that you are naming them, where your dog will be staying, and how quickly they could realistically get there. A willing contact who lives an hour away and works nights may still be right, but only if the backup covers the gaps honestly.
Give your vet permission in writing
Call your usual veterinary practice before the trip and explain that you will be abroad. Ask how they handle treatment decisions when an owner cannot be reached, and leave written authorisation naming the people who may consent to emergency care on your behalf. Cover the practical points vets actually ask about: how to reach you, what number works internationally, whether there is a spending point at which they should keep trying you before proceeding, and how payment will be settled. If your dog might be taken to an out-of-hours or unfamiliar clinic instead, leave your dog's history, current health issues, and usual vet's details where the sitter can hand them straight over.
Write the emergency sheet your sitter will actually use
Keep it to one clear page rather than a folder nobody opens under stress. Include your dog's name, age, breed, weight, and identifying marks; your vet's name, address, and phone number plus the nearest emergency clinic to where your dog is staying; your mobile number with the country code, a messaging app contact, and the times you will be hardest to reach; your backup person's number; and notes on how your dog travels in a car, whether a muzzle helps frightened handling, and any behaviour the clinic should know about, such as fear of other dogs in a waiting room. Walk the sitter through where the sheet, lead, carrier or harness, and payment method live, so the first minutes of a problem are not spent searching your house.
Rehearse the likely scenarios, not just the worst one
Emergencies abroad are more often a swallowed sock, a cut paw on a walk, or a dog who stops eating than a dramatic collapse. Talk through what you want done in each case: who decides a symptom can wait until morning, which clinic to use after hours, and how the sitter should update you — photos, a call, or a message summary after the vet visit. Agree how receipts and records from any treatment come back to you, and check your phone settings so clinic and sitter calls are not silenced by a travel focus mode overnight.
The signs that should never wait for you to reply
Tell your sitter plainly that some situations go straight to a vet without waiting for your answer: difficulty breathing, collapse, repeated vomiting or a swollen abdomen, suspected poisoning, a seizure, uncontrolled bleeding, or inability to pass urine. That instruction, given calmly in advance, protects both your dog and the person caring for him, who otherwise may hesitate while you are unreachable on a flight. Through KinsLe, the Care Pass your sitter holds keeps those instructions, contacts, and care details together in one temporary handover, so an emergency decision starts from your plan rather than guesswork.