Is it an emergency?

The hardest part of a pet emergency is usually the first decision: is this bad enough to drive somewhere at midnight? Here is how to think about it, and the specific signs that answer the question for you.

Emergency hospitals answer triage calls all night and they do not charge for them. If you take one thing from this page, take that: describing what you are seeing to someone qualified costs nothing, and they would far rather talk to you about a false alarm than meet your pet two hours too late. The lists below are for the moment before you make that call — or for when you cannot face making it and want to know whether you have to.

The four signs that override everything else

If you remember nothing else from this page, remember these. They cut across every species, breed and situation, and any one of them means go — regardless of how the rest of the animal looks.

1. Breathing that has changed

Not panting after a walk — genuine effort. Watch for a stretched-out neck, elbows held away from the body, exaggerated belly movement with each breath, or an animal that will not lie down because lying down makes it worse. Open-mouth breathing in a cat is an emergency full stop; healthy cats essentially never do it. Respiratory cases deteriorate faster than almost anything else and they are the classic "we thought we'd see how she was in the morning" tragedy.

2. Gum color

Lift the lip. Healthy gums are bubblegum pink and wet. Pale or white means blood loss or shock. Blue or gray means insufficient oxygen. Brick red can mean heatstroke or sepsis; yellow suggests liver trouble or red-cell destruction. Press a fingertip against the gum and release — the color should return in under two seconds. Longer means circulation is failing.

This is the single most useful thing an owner can check at home, and it takes three seconds. It is worth doing once on a healthy day so you know what normal looks like on your animal.

3. A distended, hard abdomen

Especially with retching that produces nothing. In deep-chested dogs this isbloat and GDV, which is fatal within hours untreated. A tense, painful belly in any animal can also mean internal bleeding or a blocked bladder, and none of those improve with time.

4. Collapse, or a level of dullness that is out of character

Animals hide illness — it is deeply wired, and prey species do it best of all. By the time a cat is lying still in a corner and not reacting to you, it has usually been unwell for a while. Sudden weakness, unresponsiveness, or an animal that cannot get comfortable anywhere all mean something systemic is happening.

Why "wait and see" fails

Waiting is reasonable for a huge number of symptoms. It fails badly in one specific class of problem: conditions where damage accumulates invisibly while the animal still looks stable.

Antifreeze poisoning has a treatment window of a few hours in cats, and the animal appears torecover partway through before the kidneys fail. A blocked cat looks tired and hidden until potassium stops its heart. Internal bleeding after a road accident can be silent until circulation collapses. GDV progresses over hours in an animal that is standing up and looking at you.

In each of those, the outcome is largely decided by how early treatment starts, not by how bad it looked when you decided. That is the whole argument for calling rather than watching.

Special cases that change the threshold

• Puppies and kittens — very little reserve. Vomiting, diarrhea or not eating gets serious in hours rather than days, largely because they drop their blood sugar and dehydrate fast. Halve every timeframe on this page.
• Very small breeds — same problem: a toy-breed dog can become hypoglycaemic from skipping meals alone.
• Flat-faced breeds — Bulldogs, Pugs, Frenchies, Persians. Their airways are compromised at baseline, so heat and stress that another dog would shrug off can become a respiratory emergency. Take breathing changes in these breeds seriously and early.
• Diabetic pets — vomiting or not eating in a diabetic on insulin is an urgent call, not a wait.
• Pregnant animals — active straining for 30–60 minutes with nothing produced, or more than 2 hours between offspring, needs a vet.
• Rabbits — a rabbit that stops eating or stops passing droppings is an emergency within hours. Gut stasis kills, and rabbits mask illness better than almost any pet. Not every emergency hospital treats rabbits, so ask when you call.

Making the call itself

Triage staff are trying to build a picture fast. You will get better advice if you lead with the things that matter:

• Species, breed, rough age and weight — this alone changes the risk profile enormously.
• What changed, and when. "Since about 6pm" is more useful than "recently".
• Breathing and gum color — say these unprompted; they are the first things they want.
• Anything they could have got into, including medication, plants, bins and the neighbor's shed.
• Existing conditions and current medication.

Then ask the direct question: "Based on that, do you want to see them tonight?" You will get a straight answer.

While you drive

• Call ahead — the hospital preps for your arrival and can coach you on transport.
• Suspected poisoning: bring the packaging, and phone a poison line from the car. See the poisoning guide for the numbers.
• Injured pets bite, including yours — it is pain, not betrayal. A towel over a small pet, a slip lead and a calm voice for a dog.
• Keep them warm, contained and moving as little as possible. Cats go in a carrier.
• Don't offer food or water unless you have been told to — it complicates anesthesia if surgery is needed.

If you're wrong

You will sometimes drive to an emergency hospital, pay an exam fee, and be told your animal is fine. That is not a wasted trip and it is not embarrassing — it is the system working. The exam fee is the price of ruling out the thing that would have killed them, and every emergency vet would rather see ten unnecessary cases than one that waited.

The asymmetry is the whole point: being wrong in the cautious direction costs money, and being wrong in the other direction costs the animal.