One night in a 24-hour emergency hospital costs $300 to $900 in the US, £250 to £700 in the UK, and 800 to 2,500 CNY in China, before the exam fee. That rate is quoted per 24 hours from the time of admission, not per calendar night, so a 22:00 admission and a 09:00 discharge still bill 1 full night. Most hospitals collect 50% of the high-end estimate as a deposit at intake, and 3 tiers of monitoring explain most of the spread inside the range.
What 1 night at $300 to $900 buys
The base rate covers a cage in a ward, 1 to 2 bags of IV fluids at $40 to $90 each, vitals every 4 hours, 2 to 3 vet rounds, injectable medication at $30 to $80 a day, and bedding. It does not cover the exam, the bloodwork, imaging, or any procedure, and those 4 lines usually add 60 to 120% on top of the first night. A cat admitted for vomiting and dehydration typically leaves with a first-night bill of $600 to $1,100, of which $300 to $450 is the bed itself.
The 3 monitoring tiers
Tier 1, basic ward, runs $300 to $450 a night: vitals every 4 hours, no continuous ECG, 1 nurse to 6 or 8 patients. It fits a stable cat on fluids after a blockage, or after a bout of gastroenteritis. Tier 2, intermediate, runs $450 to $650: continuous ECG and pulse oximetry, checks every hour, a syringe pump for constant-rate drugs, and 1 nurse to 3 or 4 patients. Tier 3, ICU, runs $650 to $900 and up: 1 nurse to 1 patient, an oxygen cage at $80 to $200 a night on top, blood gas every 6 hours at $60 to $120 per panel, and ventilator support where it exists. Moving from the basic ward to ICU roughly doubles the bed cost, which is why the tier, not the diagnosis, is the number to confirm at intake.
The 50% deposit, in plain terms
The deposit is 50% of the top of the estimate, not 50% of the low end. An estimate of $1,800 to $3,000 means $1,500 up front, and the difference is refunded within 5 to 10 business days after discharge. In China the deposit is often 30 to 50% of the estimate, 2,000 to 5,000 CNY for a 2-night medical case, and it is usually paid before the cat goes behind the door. Ask 2 things at the desk: whether the deposit is applied to the final bill or held on a separate card, and who calls you if the running total passes the estimate at 03:00.
The 3 explanations to get in writing
- What the nightly rate includes and what is billed separately. Fluid bags, oxygen time, blood gas panels, and every procedure should appear as separate lines with a price, not as a single nightly figure.
- What triggers a new estimate. Common triggers are any procedure over $250, starting oxygen, a move to ICU, or a transfusion. Ask for the threshold in dollars, not in words.
- What happens when you reach your cap. The usual answer is stabilize, stop adding new diagnostics, and either transfer to a daytime practice at 08:00 or discharge against advice. Get that plan before the cap is hit, not after.
Nightly rate by region
| Level of care | What is included | US (USD) | UK (GBP) | China (CNY) |
|---|---|---|---|---|
| Day ward, 12 hours | Fluids, 2 checks, no overnight nurse | 180 to 280 | 150 to 250 | 400 to 700 |
| Tier 1, basic ward | Vitals every 4 hours, 1:6 nurse ratio | 300 to 450 | 250 to 380 | 800 to 1,200 |
| Tier 2, intermediate | Continuous ECG and SpO2, hourly checks | 450 to 650 | 380 to 520 | 1,200 to 1,800 |
| Tier 3, ICU | 1:1 nurse, oxygen, blood gas every 6 hours | 650 to 900 | 520 to 700 | 1,800 to 2,500 |
Within one city the same tier varies 1.5 to 3 times by hospital level and by whether the practice runs its own night team or pays a locum service. A university teaching hospital sits at the top of the band; a suburban clinic with 1 overnight nurse sits near the bottom.
What sits outside the nightly rate
The emergency exam fee is $150 to $250, £120 to £200, or 200 to 400 CNY, and it is charged before any treatment. Bloodwork runs $180 to $350 for a full panel, a 2-view x-ray set $250 to $450, and an abdominal ultrasound $350 to $600. Oxygen adds $80 to $200 a night. A blood gas panel at $60 to $120 every 6 hours is $240 to $480 a day on its own. A transfusion is $250 to $600 per unit plus $150 to $300 for cross-matching and setup. None of these lines appears in the nightly quote, which is why a quoted $450 night rarely bills under $700.
How 3 nights become $2,700
Take tier 2 at $550 a night for 3 nights: $1,650 for the bed. Add the exam at $200, bloodwork at $250, an x-ray set at $350, and medication at $120, and the bill is $2,570 before any procedure. Push the same cat into ICU for 3 nights at $900 and the bed alone is $2,700, with a realistic total of $3,400 to $4,500 once oxygen and blood gas are counted. The first night is the expensive one because diagnostics land there; nights 2 and 3 usually run 55 to 70% of night 1 for the same tier.
How to shorten the stay by 1 night
Ask for the discharge criteria in writing at intake: eating 50% of a normal meal, no vomiting for 12 hours, a temperature between 37.5 and 39.2°C, and a normal urine output on the chart. A cat that meets all 4 at 08:00 does not need a second night at $450 to $650, and a practice that cannot name its criteria is a practice that will keep the cage occupied. Ask whether the 12-hour day ward at 50 to 60% of the nightly rate is an option for a cat that only needs fluids and 2 checks. One night saved is $300 to $900, which is roughly what a year of routine preventive care costs for most cats.
Emergency surgery is a separate bill with its own range, priced line by line at /cost/cost-of-emergency-surgery-list/; how the deposit is refunded, and whether a card is held instead, is at /cost/cost-of-emergency-deposit/. Add your own tiers with /tools/cost/.
Frequently asked
Why is the first night always the most expensive?
Because the diagnostics land there: the exam fee of $150 to $250, bloodwork at $180 to $350, and imaging at $250 to $600 all get billed in the first 24 hours, before anyone knows what is wrong. Once the diagnosis is set, nights 2 and 3 usually run 55 to 70% of night 1 for the same monitoring tier, since only the bed, fluids, and nursing time are added.
Can I ask to move my cat to a cheaper clinic in the morning?
Yes, and it is a normal request. A stable cat on fluids can move to a daytime practice at 08:00, where a day of care runs 40 to 60% of an emergency night. Ask the night vet to write the transfer summary and the discharge criteria before you call the other clinic, so the new team knows the fluid rate, the drugs given, and the last bloodwork values.
What happens if the bill passes my estimate at 3 a.m.?
Nothing should happen without a phone call, and that is the part to confirm at intake. Most hospitals treat the estimate as a range and call when the running total reaches the top of it, then ask whether to continue, stabilize and transfer, or stop. Put the cap in writing in dollars, and name the person who is authorized to approve more, because a cat cannot wait for a family meeting.
Related guides
- Emergency Vet Deposit: 300 to 1,000 Dollars Before Treatment
- Emergency Cat Surgery: What the Four Main Procedures Bill
- What a Cat Costs Per Year: Realistic Annual Budget Ranges
- What a Cat Costs Per Year, by Life Stage
- What a Cat Costs in New York, London, Shanghai and Tokyo
- Cat-Proofing Cost: Windows, Doors, Cables, High Ledges