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* This is not a home test kit. You will need to visit a local lab for testing.
Fasting Required: No
Turnaround Time: 2-7 business days
Specimen Type: Urine
Collagen Cross-linked N-telopeptide
The N-telopeptide Cross-links (NTx) test is a tool used to assess bone health or diagnose a medical condition that detracts from the condition of your bones. The test does this by checking the urine’s level of NTx, which is produced when there is bone resorption or breakdown. By measuring the NTx levels, doctors can evaluate any bone loss and determine if you are at risk for osteoporosis or another bone-related disease.
The N-telopeptide test measures the amount of NTx molecules in your urine sample. When the body breaks down bone tissue faster than it replaces it, the level of NTx increases. The NTx test can help detect early bone loss and help you and your doctor develop an effective treatment plan.
The NTx test is recommended for people who are at risk for bone loss or have a family history of osteoporosis. Postmenopausal women may also want to take this test because their lower estrogen levels raise their risk of bone loss. Finally, the N-telopeptide test can be used to monitor patients who have bone-related medical conditions to ensure their treatment plan is working.
There is no specific preparation required for the N-telopeptide urine test. However, you should make sure to follow the instructions for collecting your sterile urine sample so the test results are accurate.
The reference range for an NTx test is 0 to 62 nM BCE/mmol creatinine for men, 0 to 64 nM BCE/mmol creatinine for women ages 20 to 49, and 0 to 89 nM BCE/mmol for women older than 49. If you want to review your results with an experienced physician, schedule a telehealth visit with one of our board-certified doctors.
Take care of your bone health with Personalabs. We have a wide variety of tests to choose from, including autoimmune disorder tests that can give you a clearer picture of your health. It’s easy to order tests from us, and depending on the state where you live, you may not even need a doctor’s approval to do so. Here’s how the process works:
Step 1: Shop Personalabs online and purchase your test, then download the corresponding lab order.
Step 2: Find the location near you to complete your testing. We give you more than 4,000 labs to choose from because we’ve partnered with leading lab companies Labcorp and Quest Diagnostics.
Step 3: Follow all testing instructions when it is time to give your sample at the lab.
Step 4: Check your private Personalabs account for your results, typically within 2 to 10 business days after you complete your urine test. (Contact us if you need help getting your results report by a specific deadline.)
Take control of your health by making informed healthcare choices. Get the data you need from the tests you order at Personalabs.
Provider | LabCorp, Quest |
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Order Your Test
Create an account, choose your tests, checkout securely, generate your lab order
Generate & Print Out Lab Order
Our physician network will approve your order within 2-4hrs.
Visit the Lab
The test price decides which lab you will visit: Quest or Labcorp. Find a location in your area.
Get Your Results
Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.
Based on 2,264 reviews subject to moderation
Ordered a test by mistake (no lab order generated) and wasn't fulread more
Review of 5/2/2025, reflecting an experience on 4/14/2025 by Clint S
Went smoothly
Review of 5/2/2025, reflecting an experience on 4/18/2025 by Johnson J
I live in Massachusetts where most of medical procedures are goveread more
Review of 5/2/2025, reflecting an experience on 4/16/2025 by Helen M
Always quick.
Review of 5/2/2025, reflecting an experience on 4/24/2025 by Joshua T
Easy to find my tests, order, sample, and prompt return of the reread more
Review of 4/19/2025, reflecting an experience on 4/14/2025 by Steven M
Good , but nothing listing what you’re charging for what differenread more
Review of 4/19/2025, reflecting an experience on 4/3/2025 by Rodnet J
The tech was extremely rough with me, physically hurt me and pushread more
Review of 4/19/2025, reflecting an experience on 4/2/2025 by Kraig M
Great service provides easy access to routine wellness and other read more
Review of 4/19/2025, reflecting an experience on 4/10/2025 by Brian B
I don't like the fact that I have to have physician approval beforead more
Review of 4/19/2025, reflecting an experience on 4/4/2025 by Patricia S
Very good, I’m very glad with the Service
Review of 4/19/2025, reflecting an experience on 4/5/2025 by Lorena M
The only problem I have is with the self check-in kiosk. Besides read more
Review of 4/19/2025, reflecting an experience on 4/9/2025 by Dakota H
It’s quick, fast, easy, simple and most importantly discreet !
Review of 4/4/2025, reflecting an experience on 4/1/2025 by Seth Z
A very receptive and friendly employeee.
Review of 4/4/2025, reflecting an experience on 3/31/2025 by Cory H
It was smooth process and easy
Review of 3/31/2025, reflecting an experience on 3/26/2025 by christian R
Very simple and easy to accomplish what you need. Easy schedulinread more
Review of 3/30/2025, reflecting an experience on 3/19/2025 by Ben C
Ordered a test by mistake (no lab order generated) and wasn't fulread more
Review of 5/2/2025, reflecting an experience on 4/14/2025 by Clint S
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Very simple and easy to accomplish what you need. Easy schedulinread more
Review of 3/30/2025, reflecting an experience on 3/19/2025 by Ben C