An aid in monitoring antiresorptive therapies (eg, bisphosphonates and hormone replacement therapy) in postmenopausal women treated for osteoporosis and individuals diagnosed with osteopenia. An adjunct in the diagnosis of medical conditions associated with increased bone turnover
MALES: <18 yrs: not established; 18-30 yrs: 120 - 946 pg/mL; 31-50 yrs: 93 - 630 pg/mL; 51-70 yrs: 35 - 836 pg/mL; >70 yrs: not established. FEMALES: <18 yrs: not established; Premenopausal: 25 - 573 pg/mL; Postmenopausal: 104 - 1008 pg/mL.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Days Test Performed
Monday - Saturday
2 - 4 days
Soft Order Code
Update Type: Reference range changed
Updated Date: 06/30/2020
C-terminal collagen crosslinks
C-Telopeptide, Beta Cross-Linked, Serum
Mayo CTX (83175)
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Offsite Collection Instructions
Collect specimen in an SST or red top tube from a fasting patient. Centrifuge, aliquot serum into a plastic vial and freeze (preferred) or refrigerate up to 3 days.
1 mL serum
0.8 mL serum
Test sent to Mayo Medical Laboratories.