Antifreeze poisoning is a time-critical emergency for dogs and cats. Ethylene glycol tastes sweet, and a very small volume can permanently damage the kidneys. Do not wait for signs to appear, and do not attempt any home remedy or vomiting. Head to a veterinary clinic straight away, because treatment depends heavily on how soon it starts.
Why antifreeze becomes a Burnaby problem in late summer and early fall
This is the time of year coolant moves around. People top up a low reservoir before the wet driving season, shops drain and flush radiators, a tired hose on an older car starts weeping in the lane, and boats, trailers and RVs get winterized and parked for the winter. Every one of those jobs puts ethylene glycol within reach of a curious animal, almost always at ground level.
Edmonds and the surrounding parts of South Burnaby make that easy. Many homes here have a carport, a back lane, a shared parking pad or an open garage rather than a sealed private driveway, and on-street parking is the norm along Edmonds Street and the side roads running off Kingsway. A puddle under a parked car is not always on your property and not always yours to clean up. Outdoor cats, and dogs walking a lane on the way toward the Edmonds SkyTrain station, tend to find those puddles before anyone else does.
Rain works against you as well. A spill that would sit as an obvious bright pool on a dry summer driveway spreads thin across wet pavement in the fall, loses its colour, and stops looking like anything worth avoiding while remaining exactly as dangerous.
What makes ethylene glycol different from most household poisons
Three things set it apart, and each one works against the owner.
- It tastes sweet. Ethylene glycol is one of the very few common poisons a dog or cat will drink deliberately, finish, and then come back for more. Most toxins get eaten by accident. This one gets sought out.
- The volume needed is tiny. This is the part owners consistently underestimate. Cats are more sensitive than dogs, and a cat does not have to drink any of it: stepping through a spill and then grooming the paws and coat is a genuine route of exposure.
- The harm is delayed. Ethylene glycol itself is not what injures the kidneys. The liver converts it into other compounds over a period of hours, and those compounds do the damage. By the time the kidneys visibly fail, the window in which treatment is most useful has usually already closed.
Colour is not a warning system either. Coolant is sold in green, orange, pink, yellow and blue, and none of those shades tells you what is in the jug. Only the label does.
The three stages, and why the middle one fools people
Ethylene glycol poisoning follows a recognized pattern. This is not a checklist to work through at home while you decide whether to go in. It is here so you understand why “she seems fine now” is the most dangerous sentence in this whole subject.
Stage one, roughly the first half hour to twelve hours. The pet looks intoxicated. Wobbling, stumbling, a drunken gait, disorientation, nausea or vomiting, and noticeably increased thirst and urination. Some pets are simply quiet and off. In cats this phase can be subtle enough to pass for a bad afternoon.
Stage two, roughly twelve to twenty-four hours. The stumbling settles and the pet often appears to recover. This is the trap. Underneath the improvement, the heart rate and breathing rate climb, dehydration builds, and the metabolites are already accumulating. Owners who were on the fence about a visit usually decide to skip it right here.
Stage three, kidney injury. In dogs this typically emerges somewhere between one and three days after ingestion; in cats it can arrive considerably sooner. Signs include marked lethargy, vomiting, refusing food, ulcers in the mouth, unpleasant breath, and urine output that drops off or stops altogether. Once a pet reaches this stage the situation is far harder to influence, whatever the treatment.
The practical takeaway is uncomfortable but simple. The stage at which your pet looks worst is the stage at which treatment has the best chance of helping, and the stage at which your pet looks best is the stage at which it is quietly running out.
What to do if you think your dog or cat reached antifreeze
Suspicion is enough. You do not need to have watched them drink it, and you should not wait for a sign to confirm it.
- Phone us on your way in rather than after you arrive, so the team can be ready when you pull up. During our open hours, walk-ins for urgent matters are accepted.
- Bring the container, or a photo of the label. Whether the product is ethylene glycol or propylene glycol based changes the approach entirely.
- Note the time as closely as you can. “Somewhere in the last hour” is far more useful than an exact guess you are not sure about, and timing drives most of the decisions that follow.
- Give nothing by mouth. That includes milk, water, food, any human medication, and any attempt at bringing the substance back up. Improvised first aid burns the one resource that matters here, which is time, and it can injure your pet as well.
- Keep your pet quiet and contained for the trip. Do not wash the coat or paws first if that would delay you.
- If a second pet had access to the same spill, bring them too, even if they seem completely normal.
If the exposure happens outside our hours, phone the nearest facility offering overnight emergency care and go directly there. Antifreeze is not a wait-until-morning problem.
How our team approaches a suspected antifreeze case
The first job is history: what product, roughly how much, and roughly when. From there, assessment usually draws on our in-house pet diagnostics, including bloodwork to look at kidney values and the acid balance of the blood, and a urine sample examined for crystals and concentration. Having the laboratory in the building matters here, because a result that arrives the same afternoon is worth far more than one that arrives tomorrow.
A veterinarian may also check whether the coat, muzzle, paws or urine fluoresce under ultraviolet light, since many coolant products contain a fluorescent dye. It is a useful clue when it is positive, but it is only a clue, and a negative result rules nothing out.
Where the timing supports it, there is antidote therapy that works by blocking the liver from converting ethylene glycol into the compounds that injure the kidneys. It is given by a veterinarian in a clinical setting, and its usefulness is tightly tied to how soon after ingestion it starts, with a shorter window in cats than in dogs. Alongside that, care through our same-day urgent care may involve intravenous fluid support, correcting the acid balance, monitoring urine output, and pain and nausea control. Ongoing overnight monitoring, or dialysis in the small number of cases where it is appropriate, means a referral to a facility set up for it.
We will not promise you an outcome, because nobody honestly can with this toxin. What we can tell you plainly is that the difference between a good conversation and a hard one is very often measured in hours rather than days.
Where it hides around a South Burnaby home
Engine coolant in the garage is the obvious one. These are the sources that catch people out:
- The slow leak you have stopped noticing. A recurring stain under the car in the carport or lane is worth chasing down, both for the car and for whatever walks past it.
- Coolant decanted into an unlabelled pail, a pop bottle or an old ice cream tub while someone finishes a job. This is the single worst habit in the list.
- Drained radiator fluid left in an open drain pan on the garage floor overnight.
- Some brake and hydraulic fluids, and some windshield de-icing products, which can also contain glycols. Read what is on the shelf rather than assuming.
- Plumbing antifreeze used to winterize boats, trailers and RVs. Much of this product is propylene glycol based, but not all of it, and the jug is often stored right beside the engine coolant.
- Ornamental snow globes, some of which contain ethylene glycol, which becomes relevant as seasonal decorations come out of storage.
Cats deserve their own line here. A cat that slips into a neighbour’s open garage, crosses a carport, or shelters under a car on a wet night can pick up coolant on the paws and ingest it in the next grooming session, having never gone near a puddle deliberately. If your cat goes outdoors in Edmonds or Highgate at this time of year, that possibility is worth taking seriously.
Prevention, and the propylene glycol question
Prevention is genuinely effective with this toxin, which is not true of every hazard we write about.
- Store coolant in its original sealed container, up on a shelf, never on the floor and never decanted into anything that has held food or drink.
- Deal with spills at once. Absorb the liquid, wash the area down thoroughly with plenty of water and detergent, and keep pets away from the spot until it is dry.
- Take used coolant to a proper recycling depot. It should never go down a storm drain, into the lane, or into a garden.
- Fix leaks rather than topping up. A reservoir that keeps needing coolant is leaving the difference somewhere your pet can reach.
- Keep the garage or carport shut while you work, and check underneath and behind the car before you back out.
- Wipe your dog’s paws after a walk that crossed a lane or parking area where you saw a fresh stain.
On alternatives: coolant formulated with propylene glycol instead of ethylene glycol is substantially less toxic to pets, and it is a reasonable swap if your vehicle’s manufacturer permits it. It is not harmless, though. Cats in particular are more sensitive to propylene glycol than dogs, and an ingestion still warrants a phone call rather than a shrug. Some ethylene glycol products now include a bitter additive intended to discourage drinking, which is a helpful layer but not a substitute for storing the jug out of reach. Treat any wording on a label suggesting reduced toxicity as a reason to store the product carefully, not a reason to relax.
One more piece of groundwork: a pet with a current set of bloodwork on file gives us a baseline to compare against on a bad day, which is one of the quieter arguments for the wellness program and for keeping annual wellness exams on the calendar. If ongoing kidney or organ concerns are already part of your pet’s picture, our medical services team can fold that history into any urgent assessment.
Frequently asked questions
How much antifreeze is dangerous to a dog or cat?
Far less than most owners expect, and cats are affected by smaller amounts than dogs. Because the toxic quantity is so small and varies with body weight and the concentration of the product, there is no safe amount to reason about at home. Any suspected contact with coolant should be handled as an emergency rather than estimated.
My dog licked a puddle in the lane but seems totally fine. Do we still need to come in?
Yes, and quickly, because looking fine is expected in the early hours and tells you nothing. Ethylene glycol harms the kidneys through compounds the liver produces over time, so the pet is usually bright long after the exposure that matters. Waiting for a symptom means giving up the window when treatment is most likely to help.
Should I make my pet vomit if I saw them drink antifreeze?
No. Leave the mouth alone entirely and drive in instead. Kitchen-cupboard methods for bringing a substance back up delay the journey, risk injuring the throat and airway, and are unsuitable for an animal that may already be unsteady or nauseous. Decontamination decisions belong to a veterinary team with your pet in front of them.
Is pet-safe antifreeze actually safe?
Products based on propylene glycol are considerably less toxic to pets than ethylene glycol, but “less toxic” is not the same as safe. Cats are more sensitive to propylene glycol than dogs, and ingestion still deserves a call to your veterinary team. Check the label for the actual ingredient, confirm your vehicle can use it, and store it just as carefully.
Can antifreeze poisoning be treated successfully?
It can be treated, and how well it goes depends enormously on how early treatment starts relative to the ingestion. Pets brought in within the first hours, before kidney injury develops, have far more options available to them than pets who arrive once urine output has dropped. Outcomes vary in every case, which is exactly why the timing is the part worth acting on.
Suspect antifreeze? Come straight to us on Edmonds Street
Do not spend the drive debating whether it was enough to matter. Phone Edmonds St. Animal Hospital at (604) 540-7387 while you are on your way, bring the container if you can find it, and our urgent care team will start assessing your dog or cat as soon as you arrive. For a broader look at seasonal risks around the neighbourhood, our guide to heatstroke in dogs and cats covers the hazard on the other side of the calendar.
Published by the team at Edmonds St. Animal Hospital.
The information above is general and educational. It cannot stand in for a veterinarian examining your own dog or cat in person, and it should not be used to decide whether a pet needs to be seen. If something is urgent, reach Edmonds St. Animal Hospital during our open hours, or an emergency hospital outside them.
Edmonds St. Animal Hospital
7621 Edmonds St., Burnaby, BC V3N 1B6
Phone: (604) 540-7387
Hours: Monday to Friday 8:00 am to 7:00 pm
Saturday: 9:00 am to 6:00 pm
Sunday: 9:00 am to 5:00 pm