One unit of packed red cells, transfused and monitored, bills USD 510–980 in the United States, GBP 380–770 in the UK and CNY 2,200–4,750 in China. The bag itself is 45–65% of that. The rest is three lines owners rarely see quoted: typing and crossmatch (USD 100–210 combined in the US), the disposable set and warmer, and 24 hours of PCV and vital-sign checks. Expect the whole figure to vary 1.5–3× with city and hospital tier.
What one unit actually is
A feline unit of packed red cells is 50–60 mL; a unit of whole blood is 45–55 mL. Cat blood volume runs at 60–70 mL/kg, so a 4 kg cat holds 240–280 mL and a single unit replaces roughly 20% of it. Transfused at 10–20 mL/kg, that unit lifts PCV by 6–10 percentage points in a 4 kg cat — from 12% to 18–22%, which is the difference between a cat that cannot stand and one that can be examined properly.
That arithmetic drives the invoice: a 3 kg cat needing a 5-point rise takes 30–40 mL, one bag. A 6 kg cat bleeding from a tumor takes 60–90 mL, two bags, and the second bag doubles the product line while adding only one crossmatch if both are hung within 24 hours.
Typing and crossmatch: the two tests before the bag
Cats carry blood group A, B or AB, a minority are Mik-negative outside that system, and a mismatched first transfusion can kill within minutes. Blood typing is USD 40–90 in the US, GBP 30–70 in the UK, CNY 100–250 in China, and takes 10–15 minutes with a card or gel tube. A major crossmatch — donor cells against recipient serum — is USD 60–120 and takes 20–30 minutes of bench time plus a technician.
Both are skipped only when the cat's type is documented on the record from a previous visit and the donor is the same cat. If a second transfusion is needed 3–4 days later, the crossmatch must be repeated: sensitization after the first exposure makes a 4-day-old crossmatch worthless, and the repeat costs the same USD 60–120.
Consumables: the 15–25% nobody quotes
A transfusion set with a 170–200 µm filter is USD 12–30; a 20–24 G catheter, extension line, syringes and a blood warmer's disposable coil add USD 30–60; saline for priming and flush adds another USD 10–25. That is USD 70–140 in the US, GBP 50–100 in the UK, CNY 200–400 in China, and it usually appears on the estimate as a single consumables line rather than itemized.
The clock is part of the cost: a unit must finish within 4 hours of leaving the fridge, and a 50–60 mL bag at a slow rate runs 2–4 hours. A unit started at 11 p.m. means a nurse in the room for 4 hours, and that staffing is what the monitoring line pays for.
Monitoring: four time points, not one
Baseline PCV and total protein are taken before the first drop; the recheck is at 1 hour, again at 4 hours, and once at 24 hours. Vital signs — temperature, heart rate, respiratory rate, mucous membrane color — are checked every 15 minutes for the first 30–60 minutes, then hourly. A temperature rise of 0.5–1°C, tremors, vomiting or a new cough stops the transfusion and starts a reaction workup.
That is USD 90–180 of professional time in the US, GBP 70–150 in the UK, CNY 300–600 in China. It is the line most often left off a phone quote, and the one that turns a USD 300 bag into a USD 700 invoice.
United States: USD 510–980 for one unit
Teaching hospitals and specialty centers charge USD 250–450 per unit of packed cells, USD 200–350 for whole blood, plus USD 60–120 crossmatch and USD 40–90 typing. An emergency hospital at 2 a.m. adds USD 150–350 in emergency and after-hours fees. Donor availability is the real variable: a hospital without an in-house donor panel orders from a blood bank and adds USD 40–80 of courier and handling, with a 12–24 hour lead time that a bleeding cat does not have.
United Kingdom: GBP 380–770, where supply is the constraint
UK practices buy from a commercial bank or run a small in-house panel. A unit is GBP 180–350, typing GBP 30–70, crossmatch GBP 50–100, and out-of-hours fees of GBP 120–200 apply at most practices after 7 p.m. and all weekend. The binding constraint is stock, not price: a cat that needs blood on a bank holiday may be transferred 60–120 minutes to a hospital that holds units, and the transfer is GBP 100–250.
China: CNY 2,200–4,750, mostly in-house donors
Tier-1 hospitals with a blood bank charge CNY 1,400–3,000 per unit, crossmatch CNY 200–500, typing CNY 100–250. Outside Beijing, Shanghai, Guangzhou, Shenzhen and Chengdu, most hospitals rely on an in-house donor cat or an owner-supplied donor, and the real cost is the donor's sedation plus screening — CNY 800–1,800 all in for one small transfusion, with the bag effectively unpriced. A cat bleeding at 1 a.m. in a smaller city may be 200 km from a hospital that can crossmatch, and transport is CNY 500–1,500.
Itemized cost, three regions
One unit in a 4–5 kg cat, mid-range hospital, typing and crossmatch included, no reaction and no ICU. Reaction management and hospitalization sit on top and are priced in the next section.
| Item | United States (USD) | United Kingdom (GBP) | China (CNY) |
|---|---|---|---|
| Packed red cells, 1 unit | 250–450 | 180–350 | 1,400–3,000 |
| Blood typing, if unknown | 40–90 | 30–70 | 100–250 |
| Crossmatch | 60–120 | 50–100 | 200–500 |
| Set, filter, lines, warmer | 70–140 | 50–100 | 200–400 |
| Monitoring: PCV, TP, vitals | 90–180 | 70–150 | 300–600 |
| Total, 1 unit | 510–980 | 380–770 | 2,200–4,750 |
The total is the column sum of the five lines above: low ends added to low ends, high ends to high ends, so no line is double-counted and nothing is rounded away.
What makes the bill jump
Three multipliers. A second unit in 24 hours adds USD 250–450 and one repeat crossmatch. A hemolytic reaction needing hospitalization adds USD 500–1,500. And 24 hours of ICU — USD 300–800, GBP 250–600, CNY 1,000–3,000 — usually exceeds the transfusion itself, which is why the bag price is the least useful number on the estimate.
Five steps before you agree to the estimate
- Ask whether the cat's blood type is already on record; a documented type removes USD 40–90.
- Ask if the donor is in-house. An ordered-in unit means a 12–24 hour wait and USD 40–80 of handling.
- Get the crossmatch, consumables and monitoring quoted as separate lines, not one transfusion-fee total.
- Ask what a second unit within 24 hours would cost, including the repeat crossmatch.
- Ask whether ICU is included or billed hourly — that line decides the final total more than the bag does.
For the wider hospital bill around a transfusion, see cat blood transfusion cost; for cats that need both blood and dialysis, the combined pattern is in transfusion and dialysis cost. Put your own unit count into the cost calculator.
Terms mentioned in this article
Frequently asked
Why does the same unit cost 3 times more at an emergency hospital?
Because the emergency fee, the after-hours staffing and the monitoring are all billed at night rates, not because the bag changes. The product line stays at USD 250-450; the surrounding lines add USD 150-350 in emergency fees and another USD 90-180 for four-point monitoring.
Can the crossmatch be skipped if the donor is a family cat?
No. A related donor is not a safe donor. The crossmatch checks recipient serum against donor cells, and 3-4 days after a first transfusion it must be repeated even with the same cat, because sensitization makes an earlier result unreliable.
Is one unit ever enough?
For a 3-4 kg cat needing a 5-6 point PCV rise, one 50-60 mL unit is usually enough to bridge to treatment. A 6 kg cat with active bleeding often needs 2 units, and the second bag carries its own product line plus a repeat crossmatch.