Potassium test cost in District of Columbia
In District of Columbia, 4 hospitals publish a cash price for potassium blood test: from $31.41 to $68.69, with a median of $63.56. The lowest price is at National Rehabilitation Hospital (Washington). The highest price is 2.2× the lowest.
Outpatient cash prices, one line per hospital — its lowest listed price for code 84132. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 29, 2026. See them on a map
Hospitals in District of Columbia, cheapest first
| Hospital | Cash price | List price | File date |
|---|---|---|---|
| National Rehabilitation Hospital lowest Washington · Washington-Arlington-Alexandria, DC-VA-MD-WV POTASSIUM SERUM PLASMA WB | $31.41 | $48.32 | Apr 1, 2026 source file |
| Children's National Hospital Washington · Washington-Arlington-Alexandria, DC-VA-MD-WV CORE ABG W LYTES POTASSIUM WBLD | $59.50 | $119.00 | — source file |
| MedStar Washington Hospital Center Washington · Washington-Arlington-Alexandria, DC-VA-MD-WV POTASSIUM SERUM PLASMA WB | $67.62 | $104.03 | Apr 1, 2026 source file |
| MedStar Georgetown Hospital Northwest Washington · Washington-Arlington-Alexandria, DC-VA-MD-WV POTASSIUM SERUM PLASMA WB | $68.69 | $105.67 | Apr 1, 2026 source file |
By metro area
Each metro page compares every listing, including prices for both sides of the body.
| Metro area | Hospitals | Lowest | Median |
|---|---|---|---|
| Washington-Arlington-Alexandria, DC-VA-MD-WV | 4 | $31.41 | $63.56 |
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.
Potassium blood test in other states
- Alabama$26.10
- Alaska$61.50
- Arizona$29.95
- Arkansas$19.65
- California$73.26
- Colorado$69.75
- Connecticut$23.15
- Delaware$60.74
- Florida$63.18
- Georgia$32.80
- Hawaii$47.60
- Idaho$35.79
- Illinois$44.80
- Indiana$28.50
- Iowa$34.40
- Kansas$33.16
- Kentucky$46.40
- Louisiana$17.59
- Maine$25.08
- Maryland$11.58
- Massachusetts$31.00
- Michigan$22.10
- Minnesota$44.90
- Mississippi$27.00
- Missouri$41.32
- Montana$40.80
- Nebraska$47.81
- Nevada$62.00
- New Hampshire$47.59
- New Jersey$5.90
- New Mexico$63.41
- New York$22.69
- North Carolina$39.30
- North Dakota$41.00
- Ohio$23.35
- Oklahoma$32.55
- Oregon$21.75
- Pennsylvania$32.70
- Puerto Rico$15.00
- Rhode Island$29.50
- South Carolina$41.74
- South Dakota$54.90
- Tennessee$26.13
- Texas$65.23
- Utah$110.70
- Vermont$41.58
- Virginia$39.00
- Washington$40.15
- West Virginia$25.25
- Wisconsin$29.04
- Wyoming$25.04
Median cash price across the state's hospitals.