Potassium test cost in Kansas City, MO — inpatient
In Kansas City, MO-KS, 10 hospitals list a cash price for potassium blood test as an inpatient: from $8.57 to $185.01, with a median of $35.14. The lowest listed price is at Ascentist Hospital — $26.57 less than the median here. Across Missouri, the median is $41.32 at 64 hospitals.
Cash prices at 10 facilities across 8 cities for code 84132, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Mar 6, 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 Kansas City, MO-KS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Ascentist Hospital lowest Leawood, KS · (913) 529-1801 POTASSIUM, SERUM source file | $8.57 | $30.00 | $7.90–$10.23 | 71% |
| Liberty Hospital Liberty, MO · (816) 781-7200 POTASSIUM +2 more lines at this price source file | $17.00 | $63.00 | $17.58–$51.41 | 73% |
| NKC Health North Kansas City, MO · (816) 691-2000 POTASSIUM BLOOD POINT OF CARE+2 more lines at this price File of Mar 6, 2026 · source file | $17.98 | $62.00 | $37.20–$50.72 | 71% |
| Children's Mercy Hospital Kansas City, MO · (816) 234-3000 POTASSIUM BLOOD CMH+2 more lines at this price source file | $26.88 | $56.00 | $26.88–$50.40 | 52% |
| Children's Mercy Hospital Kansas Overland Park, KS · (913) 696-8000 POTASSIUM BLOOD CMH+2 more lines at this price source file | $26.88 | $56.00 | $26.88–$50.40 | 52% |
| Cass Regional Medical Center Harrisonville, MO · (816) 380-5888 84132 POTASSIUM, SERUM File of Apr 7, 2026 · source file | $43.40 | $62.00 | $8.06–$60.08 | 30% |
| Bates County Memorial Hospital Butler, MO · (660) 200-7000 POTASSIUM File of Apr 20, 2026 · source file | $79.50 | $113.57 | $96.53 | 30% |
| Rehabilitation Hospital of Overland Park Overland Park, KS Serum Potassium File of Aug 6, 2026 · source file | $109.30 | $109.30 | $65.58–$98.37 | — |
| AdventHealth South Overland Park Overland Park, KS · (913) 373-2000 HC POTASSIUM LEVEL File of Apr 1, 2026 · source file | $185.01 | $185.01 | — | — |
| AdventHealth Shawnee Mission Shawnee Mission, KS · (913) 676-2152 HC POTASSIUM LEVEL File of Apr 1, 2026 · source file | $185.01 | $185.01 | — | — |
Inpatient: lowest $8.57, median $35.14, highest $185.01 — a 21.6× difference within the same market.
As an outpatient, the same code is billed by 21 facilities here, median $109.30 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 7 of 8 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
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.