Laboratory Medicine
Test Directory / Collagen type 1 cross-linked C-telopeptide (CTx / Beta crosslaps)
Collagen type 1 cross-linked C-telopeptide (CTx / Beta crosslaps)
EDTA
| Test | Collagen type 1 cross-linked C-telopeptide (CTx / Beta crosslaps) | 
|---|---|
| Common Abbreviations | CTx | 
| Profile | NA | 
| Tube type | EDTA | 
| Clinical Indication | Used in monitoring the response to anti-resorptive therapy for the treatment of osteoporosis | 
| Specimen Type | Blood | 
| Sample type | EDTA plasma | 
| Minimum Volume | 0.6mL | 
| Special Precautions | Fasting sample. Must be received within 3 hours of collection. Centrifuge and freeze immediately. | 
| Stability | 3h at 20-25°C, >1 year at -20°C | 
| Turnaround Time | 2 weeks | 
| Laboratory | Norfolk and Norwich University Hospitals NHS Foundation Trust, NR4 7UY. 01603 286929/ 01603 287945 | 
| Reference Interval | See report | 
| Limitations | Large circadian variation. Minimise effects by collecting fasting morning sample. | 
| Notes | Test only available for Consultant Endocrine / Metabolic Medicine and Rheumatology requestors | 






