| Laboratory: | Clinical Biochemistry (SENDOUTS) |
| Test Name: |
BETA-CTX (BETA-CROSSLAPS) - (P)
Test Code:
CTX
|
| Clinical Information: |
Alternate Name(s): C-Telopeptide
Description: This test is used as a biochemical marker of bone resorption. It is useful to monitor antiresorptive therapies (bisphosphonates & hormone replacement therapy) in patients wih osteoporosis or other bone diseases. Patient preparation instructions: A fasting specimen is recommended. It should be collected in the morning due to circadian rhythm. |
| Collection Devices: |
Preferred Device:
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| Specimen Required: |
Plasma: 1.0 mL
Pediatric Plasma: 1.0 mL
Collection Information: Separate plasma from cells and aliquot within 2 hours of collection. Store and send frozen. A fasting specimen is recommended. It should be collected in the morning due to circadian rhythm. Specimen Stability: Ambient: 1 day Refrigerated: 8 days Frozen: 3 months |
| Referral: |
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| Requisition: | |
| Reference Values: |
In-Common Laboratories Reference Values
In Common Laboratories (Roche Elecsys β-Crosslaps package insert 2022-10, V18) Jorgensen NR et.al. Comparison of two automated assays of BTM and reference intervals in a Danish population. Osteoporosis Int 2017; 28:2103-2113 |
| Availability: |
Within 1 Week
|
| See Also: | |
| More Information: |
Store and send frozen to In-Common Laboratories. Test code CTELO
|