Potassium test cost in Houston, TX — inpatient
In Houston-Pasadena-The Woodlands, TX, 45 hospitals list a cash price for potassium blood test as an inpatient: from $4.76 to $185.00, with a median of $45.56. The lowest listed price is at Harris Health and 1 other hospital — $40.80 less than the median here. Across Texas, the median is $65.23 at 300 hospitals.
Cash prices at 45 facilities across 18 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 Aug 6, 2026.
Lowest$4.76Harris Health + 1 more
Median$45.56half of hospitals charge less
Highest$185.00in this market
Difference38.9×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Houston-Pasadena-The Woodlands, TX.
median
Lowest $4.76Highest $185.00
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Harris Health lowest Taub Loop Houston, TX · (713) 873-2000 POC POTASSIUM;SERUM, PLASMA (POCE3)+4 more lines at this price source file | $4.76 | $14.00 | $4.00–$33.15 | 66% |
| Harris Health lowest Houston, TX · (713) 873-2000 POC POTASSIUM;SERUM, PLASMA (POCE3)+4 more lines at this price source file | $4.76 | $14.00 | $4.00–$33.15 | 66% |
| Memorial Hermann Northeast Hospital Humble, TX · (281) 540-7700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Pearland Hospital Pearland, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Sugar Land Hospital Sugar Land, TX · (281) 725-5000 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Rehabilitation Hospital Katy Katy, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Tirr Memorial Hermann Houston, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann The Woodlands Medical Center The Woodlands, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Katy Hospital Katy, TX · (281) 392-1111 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Greater Heights Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Memorial City Medical Center Houston, TX · (713) 242-3000 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Southeast Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Southwest Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $23.76 | $74.25 | — | 68% |
| Memorial Hermann Southwest Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann The Woodlands Medical Center The Woodlands, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Katy Hospital Katy, TX · (281) 392-1111 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Tirr Memorial Hermann Houston, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Northeast Hospital Humble, TX · (281) 540-7700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Sugar Land Hospital Sugar Land, TX · (281) 725-5000 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Greater Heights Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Memorial City Medical Center Houston, TX · (713) 242-3000 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Pearland Hospital Pearland, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Rehabilitation Hospital Katy Katy, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Southeast Hospital Houston, TX · (713) 448-6796 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $24.96 | $78.00 | — | 68% |
| Memorial Hermann Rockets Orthopedic Hospital Bellaire, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann Cypress Hospital Cypress, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann Imaging Center (Texas Medical Center) Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Children's Memorial Hermann Hospital Houston, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann Imaging Center (Cypress) Cypress, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann Imaging Center (Upper Kirby) Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann Imaging Center (Bellaire) Bellaire, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| Memorial Hermann-Texas Medical Center Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM - POCT File of Apr 1, 2026 · source file | $28.48 | $89.00 | — | 68% |
| The Community Hospital of Brazosport Lake Jackson, TX · (979) 297-4411 POTASSIUM File of Feb 28, 2026 · source file | $30.51 | $87.15 | $43.58 | 65% |
| Memorial Hermann Imaging Center (Upper Kirby) Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann Rockets Orthopedic Hospital Bellaire, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann Imaging Center (Bellaire) Bellaire, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann Cypress Hospital Cypress, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann Imaging Center (Texas Medical Center) Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann-Texas Medical Center Houston, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Children's Memorial Hermann Hospital Houston, TX HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Memorial Hermann Imaging Center (Cypress) Cypress, TX · (713) 704-3700 HC ASSAY OF SERUM POTASSIUM - POTASSIUM File of Apr 1, 2026 · source file | $32.72 | $102.25 | — | 68% |
| Texas Children's Hospital Houston, TX · (832) 824-1000 TC POTASSIUM (K) WHOLE BLOOD+2 more lines at this price File of Mar 5, 2026 · source file | $45.56 | $68.00 | $27.20–$64.60 | 33% |
| Voyages of Sugar Land South Sugar Land, TX Serum Potassium File of Aug 6, 2026 · source file | $47.60 | $47.60 | $35.70 | — |
| Voyages Behavioral Health of Conroe West Conroe, TX Serum Potassium File of Aug 6, 2026 · source file | $47.60 | $47.60 | $35.70 | — |
| Texas Children's Hospital Houston, TX · (832) 824-1000 TC POTASSIUM (K), POCT+5 more lines at this price File of Mar 5, 2026 · source file | $57.62 | $86.00 | $34.40–$81.70 | 33% |
| St Luke's Patients Medical Center Pasadena, TX · (281) 487-0700 POC K File of Feb 28, 2026 · source file | $72.45 | $207.00 | $134.55–$155.25 | 65% |
| PAM Health Rehabilitation Hospital of Houston Heights Houston, TX Serum Potassium File of Aug 6, 2026 · source file | $84.42 | $84.42 | $59.09–$71.76 | — |
| Pam Rehabilitation Hospital of Clear Lake Webster, TX Serum Potassium File of Aug 6, 2026 · source file | $91.00 | $91.00 | $3.62–$81.90 | — |
| Elite Hospital Kingwood Kingwood, TX · (832) 777-6165 Potassium; serum plasma or whole blood source file | $99.66 | $199.32 | $149.49 | 50% |
| The Methodist Hospital Houston, TX · (713) 790-2221 HC POTASSIUM File of Apr 1, 2026 · source file | $112.50 | $225.00 | — | 50% |
| St Luke's Patients Medical Center Pasadena, TX · (281) 487-0700 POTASSIUM File of Feb 28, 2026 · source file | $118.34 | $338.10 | $219.77–$253.58 | 65% |
| St. Lukes Hospital at the Vintage Houston, TX · (832) 534-5000 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $159.10–$370.00 | 65% |
| CHI St. Luke's Health Baylor College of Medicine Medical Center Houston, TX · (832) 355-1000 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $166.50–$370.00 | 65% |
| CHI St. Luke's Health Springwood Village Spring, TX · (936) 266-4050 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $159.10–$370.00 | 65% |
| St Luke's Lakeside Hospital The Woodlands, TX · (936) 266-4055 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $162.80–$370.00 | 65% |
| St Luke's Sugar Land Hospital Sugar Land, TX · (281) 637-7000 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $159.10–$370.00 | 65% |
| St Luke's the Woodlands Hospital The Woodlands, TX · (936) 266-4050 HC LAB POTASSIUM File of Feb 28, 2026 · source file | $129.50 | $370.00 | $159.10–$370.00 | 65% |
| Houston Methodist Continuing Care Hospital Katy, TX HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Methodist Sugar Land Hospital Sugar Land, TX · (281) 274-8000 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Houston Methodist The Woodlands Hospital The Woodlands, TX · (936) 270-2000 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Houston Methodist Clear Lake Hospital Nassau Bay, TX · (281) 333-5503 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Methodist West Houston Hospital Houston, TX · (832) 522-1000 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Methodist Willowbrook Hospital Houston, TX · (281) 477-1000 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Houston Methodist Baytown Hospital Baytown, TX · (281) 420-8600 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| Houston Methodist Cypress Hospital Cypress, TX · (346) 618-1506 HC POTASSIUM File of Apr 1, 2026 · source file | $173.50 | $347.00 | — | 50% |
| PAM Health Rehabilitation Hospital of Sugar Land Sugar Land, TX Serum Potassium File of Aug 6, 2026 · source file | $185.00 | $185.00 | $129.50–$157.25 | — |
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More
Inpatient: lowest $4.76, median $45.56, highest $185.00 — a 38.9× difference within the same market.
As an outpatient, the same code is billed by 63 facilities here, median $91.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 12 of 17 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 9 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.