How To Order Your Labs

1. Order Labs
Order online or over the phone: 1-877-511-LABS.

No doctor or consultation visit is needed. We include the required doctors order with all our testing.

You will not incur any additional charges at the lab. Our prices are all inclusive.

2. Find Lab Near You

Find a LabCorp or Quest Diagnostics location near you on our Lab Locator. After ordering your lab testing, you will receive an email with your lab requisition. Bring this requisition form (printed or on phone) to the laboratory.

No appointment is needed, but making one can minimize the wait time.

3. Lab Results Ready

We’ll email you when your results are ready. You can access the test results logging into our portal with your secure account.

Most results take 1-2 days, but some take longer. See the test description for an estimate on how long your results might take.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Check status of your results on the "Where are my results" page.

1. Order Lab Tests

Order online or over the phone. You select the testing and the lab location you want to visit.

Pay for your order using credit card or PayPal^®. (Any card with a Visa, MasterCard or Amex logo is accepted: gift cards, debit cards, HSA and FSA).

We do not accept health insurance. You will not be reimbursed by your insurance. This helps keep prices low and maintain privacy of patient health data.

A doctors order is included with all testing. You will not incur any additional charges at the lab. Our prices are inclusive.

2. Visit a Lab Near You

No appointment is needed, but making one can minimize your wait time.

If you have selected an At Home Test Kit, you will receive your test kit in the mail within 5 to 7 business days.

3. Lab Results Sent Directly To You

We’ll email you when your results are ready. You can access the test results logging into our portal with your secure account.

Most results take 1-2 days, but some take longer. See the test description for an estimate on how long your results might take.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Check status of your results on the "Where are my results" page.

Carbohydrate-deficient Transferrin (CDT)

This test measures the level of Carbohydrate-deficient Transferrin (CDT) in the blood and may be used to detect heavy ethanol (alcohol) consumption.

Test results may take 3-5 business days. Reference intervals between laboratories may be different.

Sample Results

$249
LabCorp $219
Quest

Sample Results

Test Details

Testing by CLIA approved lab: LabCorp or Quest Diagnostics

Transferrin is a protein found in the serum that carries iron through the bloodstream to the bone marrow, liver and spleen. There are numerous types of transferrin with the most common form having four sialic acid chains, known as tetrasialotransferrin. In individuals who consume large quantities of alcohol, the amount of transferrin with zero, one or two sialic acid chains increases, known as CDT. This is what is then measured in the bloodstream to be used as markers of alcohol abuse. This test may also be used to monitor treatment in individuals with alcohol abuse and to monitor for a possible relapse.

Heavy alcohol use (defined as >4 or 5 beverages per day for two weeks or more) is commonly associated with elevated CDT levels as are certain liver diseases such as primary biliary cirrhosis and chronic active hepatitis and in some patients with genetic D variants of transferrin.

This test is not intended to detect occasional or light alcohol consumption. Elevated CDT levels are typically indicative of heavy alcohol consumption during the last 2-4 weeks. An ETG Alcohol test may be more effective at detecting alcohol use in the past 1-3 days.

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Feb 08, 2021

Testing by CLIA approved lab: LabCorp or Quest Diagnostics

Reviewed By: Dr. Kurt Kloss, MD
Last Reviewed Date: Feb 08, 2021

1. Purchase Tests

Choose the test you want (be sure to pick the laboratory you want to use).

Pay by credit card or PayPal^®.

You pay directly and we do not bill your insurance.

2. Visit a Lab

After purchasing your testing you will receive an email with your lab requisition. Bring this form to the laboratory.

Find Your Lab Location.

If you have selected the option to have an At Home Test Kit delivered to you, you will receive your test kit in the mail within 5 to 7 business days. (Not all tests are available as At Home Test Kits.)

3. Get Results

We’ll email you when your results are ready. Sign into your account to view and download your result reports.

Certain result values may prompt a phone call from our ordering provider to ensure the patient is aware of their result.

Sample Type

Blood

Prepare For Your Test

No special prep required.

Also Known As

No other names specified

Carbohydrate-deficient Transferrin (CDT)

$249
LabCorp $219
Quest