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ID:773 Carboxy-terminal collagen crosslinks (CTX)
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DescriptionCarboxy-terminal collagen crosslinks (CTX) measured in serum reflects resorption of mature collagen by osteoclasts. This test is reserved for use by Bone Clinic only.
IndicationUsed to assess patient response to antiresorptive therapy/ compliance, baseline level required.
Additional InfoAlso known as Collagen type 1 cross-linked C-telopeptide and cross-linked C-telopeptide of collagen type 1
Concurrent Testsna
Dietary Requirementsna

InterpretationLevels increased in any condition with increased osteoclast activity such as immoblisation, Paget's Disease, osteoporosis, metastatic cancer, primary hyperparathyroidism.

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes0.1 -0.5ug/l
Units - Not Defined -


IP Acute TATAbout 2 weeks
IP Routine TATAbout 2 weeks
GP Acute TAT- Contact Laboratory
GP Routine TAT- Contact Laboratory
Turnround CommentAllison Chipchase:allison.chipchase@nnuh.nhs.uk
Originally edited by : W. Mbagaya. Last edited on 22/11/2018 10:00:50. Published By dan carless on 22/11/2017 10:00:50.