Potassium test cost in Sacramento, CA — inpatient
In Sacramento-Roseville-Folsom, CA, 12 hospitals list a cash price for potassium blood test as an inpatient: from $36.19 to $155.00, with a median of $104.16. The lowest listed price is at Mercy General Hospital — $67.97 less than the median here. Across California, the median is $73.26 at 208 hospitals.
Cash prices at 12 facilities across 7 cities for code 84132, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Feb 28, 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 Sacramento-Roseville-Folsom, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Mercy General Hospital lowest Sacramento, CA · (916) 453-4453 POTASSIUM BLD File of Feb 28, 2026 · source file | $36.19 | $166.00 | $119.52–$132.80 | 78% |
| Woodland Memorial Hospital Woodland, CA · (530) 662-3961 POTASSIUM BLD File of Feb 28, 2026 · source file | $45.49 | $166.00 | $18.26–$152.72 | 73% |
| Mercy San Juan Medical Center Carmichael, CA · (916) 537-5000 POTASSIUM BLD File of Feb 28, 2026 · source file | $45.49 | $166.00 | $18.26–$137.78 | 73% |
| Methodist Hospital of Sacramento Sacramento, CA · (916) 423-6010 POTASSIUM BLD File of Feb 28, 2026 · source file | $47.81 | $166.00 | $124.50–$137.78 | 71% |
| Mercy Hospital of Folsom Folsom, CA · (916) 983-7400 POTASSIUM BLD File of Feb 28, 2026 · source file | $64.58 | $166.00 | $18.26–$136.12 | 61% |
| Mercy General Hospital Sacramento, CA · (916) 453-4453 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $96.80 | $444.00 | $319.68–$355.20 | 78% |
| Kaiser Foundation Hospital - Sacramento Sacramento, CA · (916) 973-5000 POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $104.16 | $186.00 | $5.00–$15.00 | 44% |
| Kaiser Foundation Hospital - Roseville Roseville, CA · (916) 784-4000 POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $104.16 | $186.00 | $5.00–$15.00 | 44% |
| Kaiser Foundation Hospital - South Sacramento Sacramento, CA · (916) 688-2000 POTASSIUM SERUM PLASMA/WHOLE BLOOD File of Apr 1, 2026 · source file | $104.16 | $186.00 | $5.00–$15.00 | 44% |
| Mercy San Juan Medical Center Carmichael, CA · (916) 537-5000 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $121.66 | $444.00 | $48.84–$368.52 | 73% |
| Woodland Memorial Hospital Woodland, CA · (530) 662-3961 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $121.66 | $444.00 | $48.84–$408.48 | 73% |
| Methodist Hospital of Sacramento Sacramento, CA · (916) 423-6010 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $127.88 | $444.00 | $333.00–$368.52 | 71% |
| Sutter Davis Hospital Davis, CA · (530) 757-5108 HCHG POTASSIUM+4 more lines at this price File of Apr 1, 2026 · source file | $155.00 | $155.00 | — | — |
| Sutter Medical Center, Sacramento Sacramento, CA · (916) 454-2222 HCHG CORE POTASSIUM+4 more lines at this price File of Apr 1, 2026 · source file | $155.00 | $155.00 | — | — |
| Sutter Auburn Faith Hospital Auburn, CA · (530) 888-4500 HCHG CORE POTASSIUM+3 more lines at this price File of Apr 1, 2026 · source file | $155.00 | $155.00 | — | — |
| Sutter Roseville Medical Center Roseville, CA · (916) 781-1000 HCHG CORE POTASSIUM+4 more lines at this price File of Apr 1, 2026 · source file | $155.00 | $155.00 | — | — |
| Mercy Hospital of Folsom Folsom, CA · (916) 983-7400 POTASSIUM SERUM/BLD/PLASM File of Feb 28, 2026 · source file | $172.72 | $444.00 | $48.84–$364.08 | 61% |
Inpatient: lowest $36.19, median $104.16, highest $155.00 — a 4.3× difference within the same market.
As an outpatient, the same code is billed by 13 facilities here, median $104.16 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 5 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 2 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.