Potassium test cost in Lexington, KY
In Lexington-Fayette, KY, 8 hospitals list a cash price for potassium blood test: from $20.49 to $79.08, with a median of $50.68. The lowest listed price is at Saint Joseph East — $30.19 less than the median here. Across Kentucky, the median is $46.40 at 77 hospitals.
Cash prices at 8 facilities across 5 cities for code 84132, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Sep 17, 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 Lexington-Fayette, KY.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Saint Joseph East lowest Lexington, KY · (859) 967-5000 HC LAB ASSAY SERUM POTASSIUM | $20.49 | $51.00 | $3.91–$46.41 | 60% | Feb 28, 2026 source file |
| Saint Joseph East lowest Lexington, KY · (859) 967-5000 HC LAB POTASSIUM | $20.49 | $51.00 | $3.91–$46.41 | 60% | Feb 28, 2026 source file |
| Saint Joseph Hospital Lexington, KY · (859) 313-1000 HC LAB ASSAY SERUM POTASSIUM | $24.03 | $51.00 | $3.91–$46.41 | 53% | Feb 28, 2026 source file |
| Saint Joseph Hospital Lexington, KY · (859) 313-1000 HC LAB POTASSIUM | $24.03 | $51.00 | $3.91–$46.41 | 53% | Feb 28, 2026 source file |
| University of Kentucky Hospital Lexington, KY · (859) 257-2278 Hc Assay Of Serum Potassium - Potassium | $29.33 | $73.33 | — | 60% | Apr 1, 2026 source file |
| Bluegrass Community Hospital Versailles, KY · (859) 879-2300 Potassium; serum, plasma or whole blood | $47.90 | $119.76 | $3.91 | 60% | — source file |
| Bourbon Community Hospital Paris, KY · (859) 987-3600 Potassium; serum, plasma or whole blood | $53.46 | $133.64 | $3.91 | 60% | — source file |
| Baptist Health Lexington Lexington, KY · (859) 260-6100 Blood potassium level | $57.15 | $76.20 | $3.91–$154.91 | 25% | Sep 17, 2026 source file |
| Clark Regional Medical Center Winchester, KY · (859) 737-8559 Potassium; serum, plasma or whole blood | $57.54 | $143.85 | $9.77 | 60% | — source file |
| Georgetown Community Hospital Georgetown, KY · (502) 868-1100 Potassium; serum, plasma or whole blood | $79.08 | $197.69 | $4.91 | 60% | — source file |
Outpatient: lowest $20.49, median $50.68, highest $79.08 — a 3.9× difference within the same market.
As an inpatient, the same code is billed by 4 facilities here, median $22.26. 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 3 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 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.