Ammonia test cost in Las Vegas, NV — inpatient
In Las Vegas-Henderson-North Las Vegas, NV, 7 hospitals list a cash price for ammonia blood test as an inpatient: from $39.95 to $224.95, with a median of $159.13. The lowest listed price is at Horizon Specialty Hospital of Las Vegas — $119.18 less than the median here. Across Nevada, the median is $159.13 at 17 hospitals.
Cash prices at 7 facilities across 2 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Jan 1, 2026 and Aug 6, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Las Vegas-Henderson-North Las Vegas, NV.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Horizon Specialty Hospital of Las Vegas lowest Las Vegas, NV Ammonia File of Jan 1, 2026 · source file | $39.95 | $39.95 | $39.95 | — |
| University Medical Center of Southern Nevada Las Vegas, NV · (702) 383-2000 HC AMMONIA File of Jul 1, 2026 · source file | $93.00 | $310.00 | $7.02–$263.50 | 70% |
| Saint Rose Dominican Hospitals - San Martin Campus Las Vegas, NV · (702) 492-8509 AMMONIA File of Feb 28, 2026 · source file | $143.71 | $701.00 | $210.30–$504.72 | 79% |
| Saint Rose Dominican Hospitals - Siena Campus Henderson, NV · (702) 616-5000 AMMONIA File of Feb 28, 2026 · source file | $159.13 | $701.00 | $210.30–$504.72 | 77% |
| Saint Rose Dominican Hospitals - Rose de Lima Henderson, NV · (702) 616-5000 AMMONIA File of Feb 28, 2026 · source file | $200.49 | $701.00 | $210.30–$504.72 | 71% |
| PAM Squared at Las Vegas Las Vegas, NV Ammonia File of Aug 6, 2026 · source file | $213.20 | $213.20 | $149.24–$181.22 | — |
| Complex Care Hospital at Tenaya Las Vegas, NV Ammonia File of Aug 6, 2026 · source file | $224.95 | $224.95 | $157.47–$191.21 | — |
Inpatient: lowest $39.95, median $159.13, highest $224.95 — a 5.6× difference within the same market.
As an outpatient, the same code is billed by 11 facilities here, median $200.49 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 4 of 7 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 3 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.