Services & Specialties at Grand River Medical Group

Medical Laboratory

For your convenience and to minimize your costs, we have a well-equipped, on-site laboratory, that is staffed with skillfully trained personnel.

Hours of Operation 

Monday - Friday 6:30 AM - 5:00 PM


Our lab has earned Laboratory Accreditation by COLA, a national healthcare accreditation organization and Clinical Laboratory Improvement Amendments (CLIA).

Most of the laboratory tests that you need can be performed right here in our in-office laboratory. If we are unable to perform the test you need, we can collect the specimen and send it to the appropriate laboratory. The vast majority of the laboratory tests that we send out are performed right here in Dubuque at United Clinical Laboratories or sent to a national reference laboratory, LabCorp (Laboratory Corporation of America).

Lab Results

Because most of the laboratory tests you need are performed right in our office, we commonly have your results within an hour or two. Nevertheless, just to make sure your provider has the results of your laboratory tests before your office visit, your provider may ask you to come to our laboratory up to one week ahead of your office visit. We know this is not always possible, and frequently we will have your results available for your provider at the time of your office visit even if you have the laboratory tests on the same day.

Lab Resources

Understanding Lab Test Results

Lab Test Results: Units of Measurement

Contact us

If you have any questions or comments about our laboratory service, please let us know by calling 563-557-9111 and ask to speak to our laboratory manager.