How to Cite This Chapter: Don-Wauchope A, Chetty VT, Ivica J, Kavsak P, Khan WI, Lafreniere M, Nouri K, Solnica B. C-terminal Telopeptide of Collagen Type I Alpha Chain (CTx or Beta-CTx). McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. https://empendium.com/mcmtextbook/chapter/B31.1269.3.7.61. Accessed October 04, 2024.
Last Updated: May 9, 2022
Last Reviewed: May 9, 2022
Chapter Information
McMaster Textbook of Internal Medicine Editorial Offices
Editorial Office (Canada)
Authors: Andrew Don-Wauchope, Vasudhevan T. Chetty, Joško Ivica, Peter Kavsak, Waliul I. Khan, Matthew Lafreniere, Kazem Nouri
Editorial Office (Poland)
Authors: Bogdan Solnica
For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.
Analyte [material]
C-terminal telopeptide of collagen type I alpha chain (CTx or beta-CTx) [S/U]
Reference range, target level, or decision threshold
<450 microg/mmol of creatinine [U]!!!
Postmenopausal women: <800 microg/mmol of creatinine [U]!!!
Premenopausal women: <0.573 ng/mL [S]!!!
Postmenopausal women: 0.104-1.008 ng/mL [S]!!!
Interpretation of results
↑ Bone diseases (bone resorption): Osteoporosis, osteomalacia, primary hyperparathyroidism, CKD, vitamin D deficiency, metastases