When a Pet Needs a Vet Right Now
Some things that go wrong with a pet get better on their own, and a few kill in hours. Knowing which is which is the most valuable thing an owner can carry, because these are the situations where the delay is what does the harm.
This is general information, not veterinary advice. If you are worried about your animal, call your vet or an emergency clinic. Nobody minds a call that turns out to be nothing.
Go now, do not wait for morning
- A male cat straining in the litter tray and producing nothing. A urinary blockage is a genuine emergency; a fully blocked cat can die within a day or two, and cats are frequently mistaken for constipated. Straining, crying in the tray, or repeated trips with no urine is a same-hour problem.
- A deep-chested dog retching without bringing anything up, with a hard, swollen or drum-tight belly and obvious distress. That is the picture of bloat and gastric torsion, which is surgical and fast.
- Difficulty breathing. Open-mouth breathing in a cat is never normal. Neither is a dog whose gums are pale, blue or brick red.
- A seizure lasting more than a few minutes, or repeated seizures without full recovery in between.
- Suspected poisoning — see below. Take the packaging with you.
- Collapse, unresponsiveness, or a distended abdomen of sudden onset.
- Heatstroke signs after exertion or a warm car: heavy distress panting, staggering, vomiting, collapse. Start cooling with room-temperature water on the way, and go.
- Any wound that will not stop bleeding, a suspected fracture, or a fall from a height.
Call today, but not necessarily this minute
Vomiting or diarrhoea lasting more than a day, or with any blood in it. A sudden change in drinking — much more or much less — which is the reason the water intake calculator exists as a baseline. Not eating for 24 hours in a dog, and any refusal to eat in a cat, which is more urgent than it sounds. Limping that does not settle, a new lump, coughing, or a marked change in behaviour.
Why a cat not eating is different
Cats that stop eating can develop hepatic lipidosis — fatty liver — where the body mobilises fat faster than the liver can process it. It is serious, it can develop within days, and overweight cats are at the highest risk.
The practical rule is that a cat which has eaten nothing for a day or two needs a vet, and that a cat should never be put on a rapid diet. That is also why the weight-loss guidance on this site is emphatic about veterinary supervision for cats.
Never give human painkillers
This is worth its own paragraph because it is the most common well-meant mistake. Paracetamol (acetaminophen) is lethal to cats in very small amounts and dangerous to dogs. Ibuprofen and other human anti-inflammatories cause stomach ulceration and kidney damage in both.
There are safe, effective veterinary painkillers, and they are prescribed for the specific animal at a specific dose. If a pet is in pain, that is a reason to call the vet, not to open the bathroom cabinet.
Keep the numbers where you can find them
Your own practice's number, its out-of-hours arrangement, and the nearest 24-hour clinic — written down somewhere that does not depend on a charged phone, and known to everyone in the household.
Add your local animal poison line if there is one. In an emergency, the useful information is the species, the weight, what happened, when, and what was involved. Having the weight already known — from the same scale you use for the body condition tool — saves a genuinely useful minute.
Why hesitating is the expensive option
Emergency care costs more than a routine appointment, and a condition caught early costs less than the same condition caught late — in money, and in what can be done about it.
The common reason people wait is uncertainty about whether it is "really" an emergency. That uncertainty is exactly what a phone call resolves: every clinic and every out-of-hours service will talk to you, and being told to monitor at home is a good outcome rather than a wasted call.
Prepare before you need it
Save the numbers now. Your own practice, the nearest out-of-hours clinic, and a poison helpline for your country. Finding them at eleven at night is not the time.
Know the route. Out-of-hours care is frequently at a different address from your usual vet.
Have a carrier that works. A cat that cannot be boxed is a cat that cannot be taken anywhere, and the middle of an emergency is a bad time to discover it.
Know roughly what your pet weighs, because it is the first thing you will be asked. The weight tools are worth a two-minute visit while nothing is wrong.
What to say on the phone
Species, breed, age, rough weight. What happened and when. What you have seen — not what you think it is. Whether anything was eaten, and if so what and how much, with the packaging in your hand if it exists.
That last point matters more than almost anything else. A vet handling a suspected poisoning can act far faster with the product name and the quantity than with a description.
What not to do while deciding
Do not give human medicines. Several common ones are seriously toxic to dogs and cats at doses that seem harmless, and reaching for a painkiller is a well-recognised way to turn a manageable problem into a critical one.
Do not try to induce vomiting unless a vet has told you to, on that call, for that substance. For some things it makes the situation considerably worse.
Do not wait to see whether it resolves overnight when the signs are on the urgent list. Overnight is where the room to act disappears.
This is general information, not veterinary advice. Every figure here is a starting point for a conversation with your own vet, who knows the animal in front of them. Anything sudden, painful, or getting worse is a call to a clinic rather than a calculation.