N-Telopeptide, Urine (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
Ordering recommendation
- Patient Preparation: For 24 hours before specimen collection do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins
Specimen Requirements
Test ordering requirements
Forms required
- Requisition must be received in laboratory with specimen
- Fill in the ‘Other tests’ location on the Acute Care Phlebotomy Requisition #101062
Alias
- Collagen cross-linked N-telopeptide
Specimen Information
Specimen types accepted
- Urine
Specimen collection container
- Preferred collection container: Sterile pink-top container
Collection procedure
- Second morning sample urine collection collected between 07:30 and 10:00 a.m.
- When monitoring therapy, baseline samples should be collected prior to initiation of therapy. Subsequent specimens should be collected at the same time of day as baseline specimens.
Required volume
- Optimal volume: 20 mL
- Minimum volume: 1 mL aliquots
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.)
Rejection criteria
- Quantity not sufficient for analysis
- whole blood contamination; hemolysis
- Specimen containing preservative
- Specimens received where the collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Clinical interpretation
- Evaluation of osteoporosis and assessment of antiresorptive therapy
Performance
Days/times performed
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Maximum laboratory time
Results reporting
- 11 day turnaround time by testing laboratory
Last Updated: March 16, 2026