Your Best Medicine Gives You Results

At Barnes-Jewish St. Peters Hospital, our expertly trained and certified laboratory technologists use the latest and most advanced equipment to ensure accurate diagnostic laboratory reports for outpatients in a convenient walk-up facility. Upon receipt of a referral from your physician, one of our coordinators will call the patient to schedule your appointment.

Laboratory services include:

• Complete Blood Count (CBC)
• Comprehensive Metabolic Panel (CMP)
• Basic Metabolic Panel (BMP)
• Thyroid Stimulating Hormone (TSH)
• Free T4
• Lipid Panel
• Protime (INR)
• Hemoglobin A1C
• Urinalysis
• And more​

What age groups do you serve through the laboratory?

• We serve patients from 13 years old throughout adulthood.
• Patients 12 and under are suggested to go to Progress West Hospital's outpatient lab.
• If you have questions, please call the lab at 636.916.9454.

Why Choose Barnes-Jewish St. Peters Hospital?

• Reduced turnaround time for results to be reported to your physician.
• Immediate access by the physician to your lab reports at any hour.
• Patient privacy through secure computer lines.
• Accreditation by the College of American Pathologists (CAP)

Where to go for outpatient laboratory tests:

1. Go to the main hospital doors during normal business hours, or enter through the emergency room afterhours.
2. Check-in with registration.
3. You will be directed by registration where to report for your lab tests.

What should you bring to the lab?

• If your physician has access to EPIC, your lab tests will be ordered through this system.
• If your physician is not on EPIC, you will need to bring a requisition form with you.

Special Instructions for patients needing lab tests:

• Your physician will tell you whether to fast or not.
• Any other special instructions regarding you test will be provided by your physician.
• If the test is a 24 hour collection test and your physician has not provided a container, then you must come by the outpatient lab to pick up the container. You will register for the lab test once the collection is complete.

Where do laboratory results appear?

• Results will appear in MyChart. 
• Results will be sent to your physician.