Preferred test to measure bone resorption and monitor response to antiresorptive therapy (eg, bisphosphonates, hormone replacement therapy) in postmenopausal women and individuals with osteoporosis.
Quantitative Electrochemiluminescent Immunoassay
Tue, Thu, Sat
For patients receiving therapy with high biotin doses (e.g. greater than 5 mg/day), specimen should not be drawn until at least 8 hours after the last biotin administration.
Serum separator tube, pink (K2EDTA), or green (lithium heparin).
Allow serum separator tube to sit for 15-20 minutes at room temperature for proper clot formation. Centrifuge and separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
After separation from cells: Ambient: 4 hours; Refrigerated: 8 hours; Frozen: 3 months
Effective November 14, 2011
|6 months-6 years||500-1800 pg/mL||500-1700 pg/mL|
|7-9 years||566-1690 pg/mL||522-1682 pg/mL|
|10-12 years||503-2077 pg/mL||553-2071 pg/mL|
|13-15 years||160-1590 pg/mL||485-2468 pg/mL|
|16-17 years||167-933 pg/mL||276-1546 pg/mL|
|18-29 years||64-640 pg/mL||87-1200 pg/mL|
|30-39 years||60-650 pg/mL||70-780 pg/mL|
|40-49 years||40-465 pg/mL||60-700 pg/mL|
|50-69 years||40-840 pg/mL|
|70 years or greater||52-847 pg/mL|
No compliance statements are in use for this test.
|Component Test Code*||Component Chart Name||LOINC|
|0070415||C-Telopeptide, Beta-Cross-Linked, Serum||41171-0|
- B-Cross Laps
- Beta-Cross Laps
- bone resorption marker
- C-terminal collagen crosslinks
- Carboxy terminal collagen crosslinks
- Collagen C Telopeptide
- Collagen Type I-C
- Collagen Type I-C Telopeptide