Sodium test cost in Eau Claire, WI
In Eau Claire, WI, 3 hospitals list a cash price for sodium blood test: from $24.86 to $49.40, with a median of $42.25. The lowest listed price is at OakLeaf Surgical Hospital — $17.39 less than the median here. Across Wisconsin, the median is $24.86 at 97 hospitals.
Cash prices at 3 facilities across 3 cities for code 84295, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 20, 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 Eau Claire, WI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| OakLeaf Surgical Hospital lowest Altoona, WI · (715) 895-9435 BLOOD SODIUM LEVEL | $24.86 | $27.62 | $4.81 | 10% | — source file |
| OakLeaf Surgical Hospital Altoona, WI · (715) 895-9435 ASSAY OF SERUM SODIUM | $25.61 | $28.45 | $4.81 | 10% | — source file |
| Aspirus Stanley Hospital Stanley, WI · (715) 644-5571 Fac Assay of Serum Sodium | $42.25 | $65.00 | — | 35% | Apr 1, 2026 source file |
| Marshfield Medical Center - Eau Claire Eau Claire, WI · (715) 858-8100 RENAL FAILURE INDICIES-SODIUM, SERUM | $49.40 | $52.00 | $4.81–$254.68 | 5% | Feb 20, 2026 source file |
| Marshfield Medical Center - Eau Claire Eau Claire, WI · (715) 858-8100 SODIUM SERUM/PLASMA/WHOLE BLD-TECH | $51.30 | $54.00 | $4.81–$254.68 | 5% | Feb 20, 2026 source file |
Outpatient: lowest $24.86, median $42.25, highest $49.40 — a 2.0× difference within the same market.
As an inpatient, the same code is billed by 2 facilities here, median $45.83. 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 1 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it 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
A sodium test measures the level of sodium in the blood. It is used for confusion, weakness, dehydration and for people on diuretics or with heart, kidney or liver disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.