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Frequently Asked Questions about Lab Tests

Do I need an appointment for lab tests?

An appointment is not necessary unless the test is a glucose tolerance, lactose tolerance, sweat chloride, platelet aggregation, cytogentic, D-xylose or NBT Test.

What information do you need when I present for lab testing at a draw station?

You will be asked to present your physician's script with the diagnosis, your identification, and your insurance information.

 Where can I learn more about the lab tests I am having?

The web site Lab Tests Online has been designed to help you, as a patient or caregiver, to better understand the many clinical lab tests that are part of routine care as well as diagnosis and treatment of a broad range of conditions and diseases.

Do I have to fast before my blood tests?

You do not have to fast unless your doctor has ordered a fasting glucose, fasting lipid panel, fasting metobolic panel, fasting cholesterol, HDL or tryglyceride.

How long should I fast?

If your doctor did not tell you how long to fast, you should not eat or drink anything for approximately 12 hours prior to the test. Fasting means you should not eat or drink any liquids except for water.

If I have to fast, can I still take regular medications?

Please consult your doctor.

I did not fast. Can I have my blood drawn anyway?

We prefer that you do not have your blood drawn. Please consult with your doctor.

 Why is my doctor ordering this test?

Lab tests are done to diagnose medical conditions, for health screening and to monitor treatment.  Please consult your doctor if you have questions.

Why do I have to have this test repeated?

Your doctor may want to confirm the results for a prior test, or to monitor the status of a disease or treatment. Please discuss with your doctor.

When will my doctor get the results?

Most tests are completed in one week, although some special tests may take longer. Please call your doctor's office for results.

Do I have to register every time I come in?

Yes, please sign in as soon as you arrive.

Can you tell me what these lab results mean?

Sorry, we cannot interpret test results.  Please speak with your doctor.

 

 

 

 

 


 

Find a Physician


St. John Clinical Pathology Laboratories

Administrative Offices

19251 Mack Ave. - Map
Suite 101
Grosse Pointe Woods, MI 48236

(800) 863-5959