Lab tests
Potassium blood test cost in Katy, TX
Potassium blood test is a lab test. Many labs sell tests directly to the public for a flat cash price, often far below hospital prices.
Typical cash price
In Texas
From 502 hospital and 9 clinic prices in Texas.
Nationwide typical: $33 (most listed prices $8.10–$111).
Cheapest in Katy, TX
- $6.75
Doctor fees are billed separately.
Source: Kindred Hospital Sugar Land price file · checked Oct 2026 - $13.50
Doctor fees are billed separately.
Source: Encompass Health Rehabilitation Hospital of Katy price file · checked Oct 2026 - $17.60
Doctor fees are billed separately.
Source: OakBend Medical Center-Jackson Street Hospital Cam price fil · checked Oct 2026 - $23.76
Doctor fees are billed separately. +4 more in this system at the same published price.
Source: Memorial Hermann Katy Hospital price file · checked Oct 2026 - $24
Doctor fees are billed separately.
Source: Nexus Children's Hospital - Houston price file · checked Oct 2026 - $28.48
Doctor fees are billed separately. +2 more in this system at the same published price.
Source: Children's Memorial Hermann Hospital price file · checked Oct 2026 - $31.55
Doctor fees are billed separately.
Source: Legent North Houston Surgical Hospital price file · checked Oct 2026 - $37.50
Doctor fees are billed separately.
Source: Encompass Health Rehabilitation Hospital of Sugar price fil · checked Oct 2026 - $47.60
Doctor fees are billed separately.
Source: Voyages of Sugar Land price file · checked Oct 2026 - $389Source: frontlineerrichmond.com · checked Oct 2026
- Memorial Heights Emergency Centerpotassium serum plasma/whole blood · PotassiumAsk what's includedList price$447Source: mhehc.com · checked Oct 2026
Common questions
Do I need a doctor's order?
In most states, direct-to-consumer labs can sell many tests without a separate doctor visit. Some states and some tests still require an order.
Is the blood draw included?
Usually yes for lab stores and booking sites. Hospitals sometimes bill the draw (venipuncture) separately.
Why are prices so different?
Each hospital and clinic sets its own cash price. Hospitals publish prices because federal rules require it; clinics and booking sites set prices to compete. The same service can cost several times more at one place than at another nearby.
Can I pay cash if I have insurance?
Yes. You can choose to self-pay. A cash price is often lower than what you would pay before meeting your deductible. Cash payments may not count toward your deductible, so check with your plan. Our cash vs. insurance tool can help you decide.
What is a Good Faith Estimate?
If you are uninsured or paying cash, providers must give you a Good Faith Estimate of the cost on request. If your final bill is $400 or more above the estimate, you can dispute it.