Most cats that drop, lie still for 5 to 20 seconds, and stand up again are not having a seizure. The 3 groups worth separating are a heart that stops moving blood for a few beats, a brain that misfires for 30 to 120 seconds, and a body-wide problem such as glucose under 60 mg/dL or systolic pressure below 90 mmHg. The 60 seconds after the fall tell you more than any test booked at 11 pm, so keep your hands off the cat and count.
The first 60 seconds: hands off, eyes on
Do not scoop the cat up. A weak cat that is still conscious can bite through a leather glove, and a cat with a pelvic fracture or a disc injury can lose the ability to walk from 1 bad lift. Do not pour water or syrup into the mouth either: a limp cat cannot swallow, and 5 to 10 ml of liquid in the airway causes aspiration pneumonia 24 to 72 hours later. Keep children and dogs 1 m back, switch off the TV, and start the clock.
Three numbers fit inside that minute. Breaths: 20 to 30 per minute at rest is normal, 40 or more is distress, and 0 means start CPR. Gums: pink with a refill under 2 seconds is normal; white, grey, or blue is an emergency whatever else you see. Legs: 30 seconds of paddling with the head arched back points to a seizure, while 5 to 15 seconds of still, floppy limbs points to a faint.
3 cause groups, and the 1 clue that splits them
- Cardiac syncope: triggered by excitement, a doorbell, or a jump down from 1.5 m, lasting 5 to 30 seconds, with full recovery in under 1 minute. A murmur, a heart rate under 140 or over 220 per minute, or cold hind paws pushes this group to the top. Hypertrophic cardiomyopathy is the usual cause in cats aged 1 to 8 years.
- Neurologic: paddling, jaw chattering, salivation, urination, then 5 to 30 minutes of disorientation and bumping into furniture. A seizure that runs past 5 minutes, or 2 seizures inside 24 hours, is an emergency on its own.
- Metabolic and vascular: a slow sag rather than a sudden drop, often after 12 or more hours without food, or in a diabetic cat on insulin. Glucose under 60 mg/dL, potassium under 3.0 mmol/L, or a temperature below 37 C fits here.
The 4 items to record, with the clock time
A vet will ask for all 4 and remember none of them for you, so write them down as they happen.
- Down time in seconds, from the drop to the first step.
- Breathing rate counted over 30 seconds and doubled, at minute 1 and again at minute 10.
- Gum color, capillary refill in seconds, and a rectal temperature if your thermometer reads in 60 seconds.
- Everything in the 10 minutes before: meal, insulin, jump, fight, plant, or a human pill within reach.
The clock that decides: 60 seconds, 60 minutes, 6 hours
| Time window | What you check | Numbers that matter | Action |
|---|---|---|---|
| 0 to 1 minute | Breathing, gum color, paddling | 20 to 30 breaths, refill under 2 seconds | Count and time it, do not move the cat |
| 1 to 10 minutes | Standing, walking, pupil size | Walks within 5 minutes | Call the clinic if still down at 2 minutes |
| 10 to 60 minutes | Second collapse, thirst, appetite | 1 collapse only, under 30 breaths | Nothing by mouth for 30 minutes, then 5 to 10 ml sips |
| 1 to 6 hours | Resting breathing, gum color, gait | Under 30 breaths, refill under 2 seconds | Same-day exam if any number moved |
| 6 to 24 hours | Eating, drinking, urine output | Half the usual food, 2 to 4 urinations | Exam within 24 hours |
| 24 to 72 hours | Cough, fever, hind leg strength | 38.1 to 39.2 C | Same-day exam for cough or 39.5 C |
Two mistakes that cause most of the harm
Lifting is the first. A cat with a dislocated hip, a fractured pelvis, or a slipped disc often looks merely wobbly for the first 30 minutes, and a 4 kg cat held under the chest with the spine bent can lose deep pain sensation within 6 to 12 hours, which is the difference between surgery and a wheelchair. Slide a rigid tray or a board under the cat, keep the spine level, and carry it in a box lined with 2 cm of towel for grip.
Forcing fluid is the second. Ten milliliters is enough to enter the trachea of a 4 kg cat, and a cat that is dull or vomiting cannot protect its airway for 2 to 4 hours. Offer nothing for the first 30 minutes. After that, 5 to 10 ml of water every 15 minutes, only if the cat is standing and tracking your hand.
Red flags: leave in the next 10 minutes
- No breathing, or breathing over 40 per minute 2 minutes after the collapse.
- Gums white, grey, or blue, or refill longer than 3 seconds.
- Temperature under 37 C or over 40 C, or a cat that feels cold from the elbows back.
- A second collapse within 24 hours, or a collapse while resting rather than playing.
- Cold hind paws with no femoral pulse, which points to a clot and buys 1 to 3 hours at most.
What happens in the first 10 minutes at the clinic
Expect 3 things before any expensive test: a stethoscope exam for a murmur or an irregular rhythm, a blood glucose reading in under 2 minutes, and a cuff on the tail or foreleg, with 120 to 160 mmHg systolic as a rough normal. An ECG strip takes 5 minutes and answers the cardiac question on the spot. A 24-hour Holter, often 200 to 400 dollars, catches the intermittent arrhythmia that a 5-minute strip misses, so 1 normal ECG does not close the file on a cat that has collapsed twice.
If a plant, a bait, or a human medicine could be involved, check the toxin list before you drive: 1 paracetamol tablet can destroy a 4 kg cat's liver in 48 to 72 hours, and permethrin flea drops meant for a dog cause tremors within 2 to 12 hours. Bring the packet, the pill bottle, or a photo of the plant.
Cats that faint and recover still need a workup, because the second event is often longer than the first. Keep a log of dates, durations, and triggers, and compare the collapse workup if episodes repeat.
Five steps for tonight
- Time the down period in seconds and note the exact clock time.
- Count breaths for 30 seconds at minute 1 and minute 10, and write both numbers.
- Photograph the gums in daylight and keep the picture for the vet.
- Clear the floor, block the stairs, and put the cat in a 2 by 2 m room with water within 1 m of the bed.
- Call the clinic if the cat is still down at 2 minutes, if breathing passes 40, or if a second collapse happens inside 24 hours.
Seconds of down time, breaths per minute, gum color, and the trigger. Four numbers, 1 minute of watching, and a 6-hour line for the exam.
Frequently asked
How do I tell a faint from a seizure in 60 seconds?
Watch the limbs. A faint gives 5 to 20 seconds of stillness with pale gums and no paddling, then the cat stands and behaves normally within 1 minute. A seizure gives 30 to 120 seconds of paddling, jaw chattering, and salivation, followed by 5 to 30 minutes of confusion, dilated pupils, and bumping into furniture. Time both and write the number down.
Should I give water or sugar right after a collapse?
No. A limp cat cannot swallow, and 5 to 10 ml of liquid in the airway causes aspiration pneumonia that appears 24 to 72 hours later. Keep the mouth empty for the first 30 minutes. After that, offer 5 to 10 ml of water every 15 minutes only if the cat is standing, alert, and tracking your hand.
When does a single collapse become an emergency?
Breathing over 40 per minute at rest, gums that are white, grey, or blue, a temperature under 37 C, cold hind paws with no femoral pulse, or a second collapse inside 24 hours all mean go now. One collapse with a full recovery still deserves an exam within 24 hours, including a murmur check and a glucose reading.