Potassium test cost in Columbus, OH — inpatient
In Columbus, OH, 18 hospitals list a cash price for potassium blood test as an inpatient: from $4.55 to $64.80, with a median of $11.03. The lowest listed price is at Berger Hospital — $6.48 less than the median here. Across Ohio, the median is $23.27 at 132 hospitals.
Cash prices at 18 facilities across 12 cities for code 84132, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 26, 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 Columbus, OH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Berger Hospital lowest Circleville, OH · (740) 420-8008 Hc Mstu Potassium Serum Plasma Or Wb+5 more lines at this price File of Apr 1, 2026 · source file | $4.55 | $7.00 | — | 35% |
| Riverside Methodist Hospital Columbus, OH · (614) 566-5000 Hc Potassium Whole Blood Cath Lab+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Pickerington Methodist Hospital Pickerington, OH · (614) 544-2136 Hc Potassium Serum Plasma Or Whole Blood+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Grove City Methodist Grove City, OH · (614) 544-2136 Hc Mstu Potassium Serum Plasma Or Wb+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Dublin Methodist Hospital Dublin, OH · (614) 544-8000 Hc Potassium Serum Plasma Or Whole Blood+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Doctors Hospital Columbus, OH · (614) 544-2136 Hc Potassium Serum Plasma Or Whole Blood+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Grant Medical Center Columbus, OH · (614) 566-9164 Hc Potassium Serum Plasma Or Whole Blood+6 more lines at this price File of Apr 1, 2026 · source file | $5.85 | $9.00 | — | 35% |
| Grady Memorial Hospital Delaware, OH · (740) 368-5145 Hc Potassium Serum Plasma Or Whole Blood+5 more lines at this price File of Apr 1, 2026 · source file | $6.50 | $10.00 | — | 35% |
| Berger Hospital Circleville, OH · (740) 420-8008 Hc Potassium Amb File of Apr 1, 2026 · source file | $6.50 | $10.00 | — | 35% |
| Fairfield Medical Center Lancaster, OH · (740) 687-8000 K, Art+6 more lines at this price File of Feb 26, 2026 · source file | $10.35 | $23.00 | $10.35–$23.00 | 55% |
| Nationwide Children's Hospital Columbus, OH · (614) 722-2000 POTASSIUM, FLUID File of Apr 1, 2026 · source file | $11.70 | $13.00 | $6.11–$12.74 | 10% |
| Nationwide Children's Hospital Columbus, OH · (614) 722-2000 POTASSIUM SERUM PLASMA OR WHOLE BLOOD File of Apr 1, 2026 · source file | $18.00 | $20.00 | $9.40–$19.60 | 10% |
| Mount Carmel Dublin Dublin, OH · (380) 898-9000 HC Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$69.00 | 35% |
| Diley Ridge Medical Center Canal Winchester, OH · (614) 838-7911 HC Warde Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$632.00 | 35% |
| Mount Carmel St Ann's Westerville, OH · (614) 546-4034 HC Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$632.00 | 35% |
| Mount Carmel New Albany Surgical Hospital New Albany, OH · (614) 775-6600 HC Warde Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$632.00 | 35% |
| Mount Carmel East Columbus, OH · (614) 234-5000 HC Warde Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$632.00 | 35% |
| Mount Carmel Grove City Grove City, OH HC Potassium Serum/Plasma/Whole Blood+1 more line at this price File of Mar 31, 2026 · source file | $18.20 | $28.00 | $4.18–$632.00 | 35% |
| Galion Community Hospital Galion, OH · (419) 468-4841 HC ASSAY OF SERUM POTASSIUM source file | $30.60 | $36.00 | $12.24–$33.12 | 15% |
| Nationwide Children's Hospital Columbus, OH · (614) 722-2000 WHOLE BLOOD POTASSIUM File of Apr 1, 2026 · source file | $51.30 | $57.00 | $26.79–$55.86 | 10% |
| Licking Memorial Hospital Newark, OH · (740) 348-4000 HC Assay of Serum Potassium - Potassium source file | $64.80 | $64.80 | $4.66–$64.80 | — |
Inpatient: lowest $4.55, median $11.03, highest $64.80 — a 14.2× difference within the same market.
As an outpatient, the same code is billed by 20 facilities here, median $14.95 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 10 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 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.