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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

TestCollagen type 1 cross-linked C-telopeptide (CTx / Beta crosslaps)
Common AbbreviationsCTx
ProfileNA
Tube typeEDTA
Clinical IndicationUsed in monitoring the response to anti-resorptive therapy for the treatment of osteoporosis
Specimen TypeBlood
Sample typeEDTA plasma
Minimum Volume0.6mL
Special PrecautionsFasting sample. Must be received within 3 hours of collection. Centrifuge and freeze immediately.
Stability3h at 20-25°C, >1 year at -20°C
Turnaround Time2 weeks
LaboratoryNorfolk and Norwich University Hospitals NHS Foundation Trust, NR4 7UY. 01603 286929/ 01603 287945
Reference IntervalSee report
LimitationsLarge circadian variation. Minimise effects by collecting fasting morning sample.
NotesTest only available for Consultant Endocrine / Metabolic Medicine and Rheumatology requestors
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