Potassium test cost in Spokane, WA
In Spokane-Spokane Valley, WA, 6 hospitals list a cash price for potassium blood test: from $14.00 to $56.00, with a median of $34.69. The lowest listed price is at Providence Mount Carmel Hospital — $20.69 less than the median here. Across Washington, the median is $40.15 at 59 hospitals.
Cash prices at 6 facilities across 3 cities for code 84132, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 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 Spokane-Spokane Valley, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Providence Mount Carmel Hospital lowest Colville, WA · (509) 684-2561 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD LAB File of Apr 1, 2026 · source file | $14.00 | $20.00 | — | 30% |
| Providence Mount Carmel Hospital Colville, WA · (509) 684-2561 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD+2 more lines at this price File of Apr 1, 2026 · source file | $17.50 | $25.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD LAB File of Apr 1, 2026 · source file | $22.40 | $32.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM BODY FLUID LAB+4 more lines at this price File of Apr 1, 2026 · source file | $25.90 | $37.00 | — | 30% |
| Providence St Luke's Rehabilitation Medical Center Spokane, WA HC POTASSIUM(K) File of Apr 1, 2026 · source file | $30.87 | $44.10 | — | 30% |
| Providence St Luke's Rehabilitation Medical Center Spokane, WA HC POTASSIUM BODY FLUID LAB File of Apr 1, 2026 · source file | $34.65 | $49.50 | — | 30% |
| Providence Holy Family Hospital Spokane, WA · (509) 482-0111 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD LAB File of Apr 1, 2026 · source file | $38.50 | $55.00 | — | 30% |
| Shriners Childrens - Spokane Spokane, WA · (509) 623-0422 ASSAY OF SERUM POTASSIUM source file | $39.90 | $39.90 | $4.76–$14.80 | — |
| Providence St Luke's Rehabilitation Medical Center Spokane, WA HC POTASSIUM File of Apr 1, 2026 · source file | $41.58 | $59.40 | — | 30% |
| Providence Holy Family Hospital Spokane, WA · (509) 482-0111 HC POTASSIUM+2 more lines at this price File of Apr 1, 2026 · source file | $42.70 | $61.00 | — | 30% |
| Providence Holy Family Hospital Spokane, WA · (509) 482-0111 HC POTASSIUM BODY FLUID LAB File of Apr 1, 2026 · source file | $44.10 | $63.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM BODY FLUID LAB+2 more lines at this price File of Apr 1, 2026 · source file | $45.50 | $65.00 | — | 30% |
| Providence Mount Carmel Hospital Colville, WA · (509) 684-2561 HC POTASSIUM SERUM EA ADDL/DAY File of Apr 1, 2026 · source file | $52.50 | $75.00 | — | 30% |
| Providence St Joseph Hospital Chewelah, WA · (509) 935-8211 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD+3 more lines at this price File of Apr 1, 2026 · source file | $56.00 | $80.00 | — | 30% |
| Providence St Joseph Hospital Chewelah, WA · (509) 935-8211 HC POTASSIUM BODY FLUID LAB File of Apr 1, 2026 · source file | $61.60 | $88.00 | — | 30% |
| Providence Mount Carmel Hospital Colville, WA · (509) 684-2561 HC POTASSIUM BODY FLUID LAB File of Apr 1, 2026 · source file | $72.10 | $103.00 | — | 30% |
| Providence St Luke's Rehabilitation Medical Center Spokane, WA HC POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $97.65 | $139.50 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD LAB File of Apr 1, 2026 · source file | $110.60 | $158.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM - SURGERY File of Apr 1, 2026 · source file | $127.40 | $182.00 | — | 30% |
| Prov Sacred Hrt Medical Center & Childs Hospital Spokane, WA · (509) 474-3131 HC POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $130.20 | $186.00 | — | 30% |
Outpatient: lowest $14.00, median $34.69, highest $56.00 — a 4.0× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $38.50. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. 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
A potassium test measures the level of potassium in the blood. Doctors check it for people on diuretics or blood pressure drugs, with kidney disease, an irregular heartbeat, or vomiting and diarrhea.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.