Start with the vet question: who treats guinea pigs at 2 a.m.?
A guinea pig emergency rarely respects surgery hours, and a herd multiplies the problem — the pig that crashes overnight needs a vet who actually treats exotics, not just whoever is on the rota. While everyone is healthy, ask your registered practice two direct questions: who provides their out-of-hours cover, and does that service have someone confident with guinea pigs on site, or will they stabilise and refer? If the answer is vague, register the herd with a second, exotics-focused practice as a backup and keep both numbers in the plan. Guinea pigs deteriorate fast once they stop eating, so the time to discover a gap in cover is a calm afternoon, not a crisis.
Build a herd file you can hand over in minutes
For each pig, keep one page or record with their name, age, sex, weight trend, ongoing conditions, past procedures, current diet and any medicines the vet has prescribed previously. In an emergency you will be stressed and possibly sending someone else with the pig, so the file has to speak for you: which pig is which (a photo helps with similar-looking sows), who is bonded to whom, and who must travel with a companion to stay calm. Note each pig's normal appetite and droppings too — "usually demolishes a pepper in minutes, has not touched food since morning" tells a vet far more than "seems unwell."
The grab-and-go kit by the carriers
Keep one carrier per pig, or per bonded pair, stored assembled rather than flat-packed in a loft. Beside them, a small kit: hay and a portion of their usual nuggets, a familiar-smelling fleece, a water bottle, absorbent pads, a torch for checking mouths and rear ends, and a printed copy of the herd file. Add the plan itself on top — vet numbers, the out-of-hours address, and directions you have actually driven once, because sat-nav confusion at midnight helps nobody. Rotate the food every few months so nothing in the kit is stale when it is finally needed.
Rehearse the plan with everyone who feeds the herd
A plan only works if the person holding the fort while you are away knows it exists. Walk family members or your pet sitter through it: where the carriers live, which pigs travel together, the early signs that justify a vet call without waiting for you to get home, and explicit permission to make that call. Guinea pigs hide illness skilfully, so give helpers the concrete triggers — a pig not eating, producing far fewer droppings, sitting hunched and fluffed, or making noise when breathing or weeing goes straight to the vet, day or night.
When the plan goes live: act on the pig in front of you
If one pig crashes, take a bonded companion along where possible; a lone guinea pig in a strange clinic is under extra stress it does not need. Phone ahead while you travel so the exotics vet is ready, and hand over the herd file on arrival rather than reconstructing history from memory. Afterwards, update the plan with anything the night taught you — a faster route, a better contact, a pig whose weight has been quietly sliding. Keeping each pig's packet current in KinsLe's Pet Passport means the records you hand over are the herd's real, complete history, not whatever you could remember under pressure.