Potassium test cost in Ann Arbor, MI
In Ann Arbor, MI, 3 hospitals list a cash price for potassium blood test: from $4.00 to $31.93, with a median of $22.10. The lowest listed price is at University of Michigan Health — $18.10 less than the median here. Across Michigan, the median is $22.10 at 87 hospitals.
Cash prices at 3 facilities across 3 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 Mar 31, 2026 and Mar 31, 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 Ann Arbor, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| University of Michigan Health lowest Ann Arbor, MI · (734) 764-1505 HC-Lab-Istat Pnl Potassium POC | $4.00 | $10.00 | $2.55–$10.63 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-POC-Potassium | $5.60 | $14.00 | $2.55–$14.88 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium: Serum, Plasma, or Whole Blood | $18.80 | $47.00 | $2.55–$49.96 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium Ser/Pl/Bld | $18.80 | $47.00 | $2.55–$49.96 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium Bld Gas POC | $18.80 | $47.00 | $2.55–$49.96 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium Fluid | $19.20 | $48.00 | $2.55–$51.02 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Hcah POC-Potassium Blood Gas | $19.20 | $48.00 | $2.55–$51.02 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium Ser/Plasma/B | $19.60 | $49.00 | $2.55–$52.08 | 60% | — source file |
| University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-Potassium RBC | $20.80 | $52.00 | $2.55–$55.27 | 60% | — source file |
| St Joseph Mercy Chelsea Chelsea, MI · (734) 475-3911 HC Potassium Serum/Plasma/Whole Blood | $22.10 | $34.00 | $1.70–$34.00 | 35% | Mar 31, 2026 source file |
| Forest Health Medical Center Ypsilanti, MI · (734) 547-4700 K LVL | $31.93 | $31.93 | $4.76–$22.35 | — | — source file |
| St Joseph Mercy Chelsea Chelsea, MI · (734) 475-3911 HC Warde Potassium Serum/Plasma/Whole Blood | $41.24 | $63.44 | $1.70–$63.44 | 35% | Mar 31, 2026 source file |
| St Joseph Mercy Chelsea Chelsea, MI · (734) 475-3911 HC Potassium Serum/Plasma/Whole Blood | $153.40 | — | $1.70–$16.52 | — | Mar 31, 2026 source file |
Outpatient: lowest $4.00, median $22.10, highest $31.93 — a 8.0× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $22.10. 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 2 of 3 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.