Collapsed Cat: The First 10 Minutes, Step by Step

A cat that is down and not getting up needs 3 things in the first 10 minutes, and none of them is a syringe of water. Check airway, breathing and circulation in 30 seconds. Keep the body above 37 °C. Write down the time of every change. The cause, the bloodwork and the bill all wait for the car ride.

The 30-second ABC check

Airway: mouth closed, nose clear of blood, foam or vomit. If the cat is unconscious, straighten the neck gently and pull the tongue forward with a finger wrapped in cloth. Breathing: watch the flank for 10 seconds and multiply by 6. A resting cat runs 20 to 30 breaths a minute, so 40 is double and 60 is desperate; under 10 is an emergency, and open-mouth breathing in a cat is always an emergency. Circulation: press 2 fingers high on the inside of the thigh for the femoral pulse, then press a gum until it blanches. Colour should come back in under 2 seconds. Pink plus under 2 seconds means the cat is still perfusing; white, gray or blue means shock or hypoxia, and the next stop is the clinic, not the kitchen.

Warmth: 37 °C is the line

Normal rectal temperature is 38.1 to 39.2 °C. A collapsed cat on a tile floor loses 1 to 2 °C in 20 minutes, and that loss does real damage: below 37 °C is hypothermia, below 35 °C the heart turns irritable and clotting slows, and a 34 °C cat is a worse anaesthetic risk than a 39.5 °C one. Wrap the cat in 2 layers, towel first, blanket second. Fill a bottle at 40 °C, wrap it in a towel, and lay it against the flank or chest, never on bare skin. Keep the room at 24 to 26 °C. Skip the hair dryer: the nozzle hits 60 to 80 °C at 10 cm and the noise adds a stress spike to a cat that is already crashing.

No water, no food, no pills

Do not syringe water or food into the mouth. A cat that cannot lift its head cannot swallow, and 10 to 20 ml down the wrong pipe is enough to start aspiration pneumonia, which kills more of these cats over the following 5 days than the collapse itself. The 1 exception is a known diabetic on insulin: a pea-sized smear of glucose gel on the gums, rubbed in and not swallowed, works through the cheek lining in 2 to 5 minutes. Everything else goes in the car, not the mouth.

Write the times down

Emergency vets ask 4 questions: when it started, whether it got better or worse, how long the episode lasted, and what the cat was doing before. A phone note with times beats memory every time, because 10 minutes of panic compresses into 2 minutes when you retell it.

Minute	What to record	Red line
0	Time of collapse, what the cat was doing	Still down after 60 seconds
2	Breaths counted over 10 seconds x 6	Under 10 or over 60 per minute
5	Gum colour and refill time	Blue, white, or over 2 seconds
10	Temperature if you have a thermometer	Under 37 °C

Move the cat without adding an injury

Slide a rigid board or a folded blanket under the cat and lift with 1 hand under the chest and 1 under the hips. Do not scruff: a scruff holds 4 kg of cat by the skin of the neck, and in a cat with a collapsing airway it pulls the head back and narrows the throat. Use a carrier with the top off, load the cat, then clip the top back on; a cat that wakes at 50 km/h in an open car becomes a 4 kg projectile. Phone the clinic while the car is warming up, 5 minutes of warning is enough for them to set out oxygen, a warm table and a catheter.

The 6 causes a vet checks first

Collapse is a sign, not a disease, and the short list is consistent. Heart disease comes first: hypertrophic cardiomyopathy affects roughly 15% of cats, and an arrhythmia can drop the output for 10 to 20 seconds and then look completely normal on arrival. Next is hypovolemia from hidden bleeding, where the belly can hold 100 to 200 ml before anything shows. Third is anemia, with a packed cell volume under 15% causing weakness rather than true fainting. Fourth is hypoglycemia under 3 mmol/L (54 mg/dL), mostly in diabetics on insulin, kittens under 12 weeks and cats with liver disease. Fifth is a seizure with a 5 to 30 minute post-ictal phase that owners read as collapse. Sixth is fever above 40 °C or sepsis. A cat with pale gums and a fast, weak pulse needs the clinic in minutes; a cat that is up, eating and annoyed at minute 10 needs it within 24 hours.

The next 24 to 48 hours

Even a cat that walks off the blanket and eats at minute 10 should be seen within 24 hours, because the arrhythmia or the bleed that caused the first episode has not been treated by the recovery. At home, check 3 things twice a day: resting breathing rate under 30 a minute, gum colour pink, and food intake above half the normal portion. Breathing over 40 at rest, a cat that hides for 6 hours, or a second episode inside 48 hours means go back, not wait. If the collapse came after a fall, a fight or a car, treat it as trauma and read how to control bleeding and cover a wound before you handle the cat, because a cat in shock bleeds faster when it is lifted badly.

Build the 10-minute kit this week

• Digital thermometer with a 10-second read, kept in the same drawer as the carrier.
• 2 blankets and a 500 ml bottle you can fill at 40 °C.
• 1 tube of glucose gel, replaced every 12 months.
• Carrier stored open, in the room the cat uses, not the garage.
• A card with the clinic number, the after-hours number, and 4 blank time slots.

If the collapse followed a bite or a scratch, the abscess that forms over 2 to 5 days is the real problem and the bite abscess timeline explains what to watch. If the cat may have eaten something, the collapse is a poisoning until proven otherwise, and the toxic plant and food checker is faster than a search engine at 2 a.m.

Frequently asked