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Accurate Hospital Lab Testing When You Need It

The medical professionals at Houston Northwest Medical Center are here to provide care for your unique needs, and rely on accurate testing to reach a diagnosis. The laboratory at Houston Northwest uses advanced technology and instrumentation to perform this vital testing and help you and your doctors make informed decisions for your health care.

To serve the needs of our community, Houston Northwest’s main laboratory is open 24 hours a day, seven days a week, with no appointment needed for routine tests. If you have questions about your prescription for testing, please call us at (281) 580-0000.

Frequently Asked Questions

What Is Fasting?

Fasting requires that you do NOT eat or drink 12–14 hours before your lab test. In some cases, water consumption may be allowed.  Please consult with your physician to see if you may consume water, and if you should continue taking your medications as usual before the test.

Do I Need to Fast?

Certain tests (such as glucose or a cholesterol panel) require fasting. Please consult with your doctor before visiting the laboratory.

Do I Need an Appointment?

Appointments for routine lab work are not necessary. Patients are seen on a first come, first-served basis.

Why Do I Need to Register Each Time I Visit the Laboratory?

Even though you may have registered before, we must ask you to register each time to avoid any billing errors caused by inaccurate or out of date information.

What Is Quick Draw?

For patients with standing orders for frequent lab tests, we’ve created a program to help make your experience more efficient. Quick Draw requires an initial registration, and then allows you to bypass the process on all subsequent visits until your orders expire.

Will My Insurance Cover My Laboratory Tests?

Houston Northwest Medical Center accepts most insurance plans. However, because coverage varies from plan to plan, we recommend you contact your insurance provider for complete details about your plan’s coverage and out-of-pocket costs.

Can I Find out What My Lab Tests Will Cost Before They Are Performed?

Yes. Please ask us at registration to estimate your costs before any services are performed.

When Will My Doctor Get My Test Results?

Most routine tests are performed in our laboratory and will be completed and reported to your doctor within 24–48 hours.

Can I Get a Copy of My Results?

A copy of your results can be obtained through the medical records department at Houston Northwest Medical Center. You’ll be required to sign an authorization release.

Learn More

To find out more about our clinical laboratory services, please call (281) 580-0000.