C Telopeptide (Type 1 Collagen/Crosslaps) Blood Test
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Test Code: 500089
Specimen Type: Blood
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Description:
C Telopeptide (Type 1 Collagen/Crosslaps) Blood Test (Labcorp)
This test measures the level of Collagen Cross-linked C-Telopeptide or C-telopeptide (CTX) in the blood. C-Telopeptide is a marker that can help to assess bone loss and monitor treatment for conditions such as osteoporosis. The body is continually breaking down and removing old bone and replacing it with new bone as part of the process to maintain a healthy bone structure. Often, as people get older, they begin to lose bone faster than it is replaced. This can lead to bones that are weaker, more brittle, and easier to break. Bone loss can happen naturally with age or as a result of underlying conditions such as rheumatoid arthritis, cushing disease, kidney disease, thyroid disorder, and some types of cancer. As bone is broken down in a process called resorption, fragments of collagen, which c-telopeptide is a component of, are released into the blood. When C-telopeptide levels are elevated, it can be a sign that a person is losing bone at an accelerated rate.
This test is usually ordered to monitor treatment for bone disorders such as osteoporosis. While it is not intended to screen for bone disorders, results from this test can help to confirm a diagnosis when a person has symptoms associated with bone loss. C-telopeptide is often ordered along with an N-telopeptide blood test which measures another marker for bone resorption.
Turnaround for this test is typically 3-6 business days.
Where can I find a C-Telopeptide test near me?
Check our lab finder to locate a collection site in your area.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Requirements:
Samples should be drawn in the morning after 12 hours of fasting.
It is recommended that someone taking Biotin (also known as vitamin B7 or B8, vitamin H, or coenzyme R) stop consumption at least 72 hours prior to the collection of a sample.
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