Test Code NTXPR NTX-Telopeptide, Urine
Secondary ID
61656Profile Information
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
NTXCT | Creatinine, U | No | Yes |
NTXUR | NTX-Telopeptide, U | No | Yes |
Method Name
NTXUR: Chemiluminescence Immunoassay
NTXCT: Enzymatic Colorimetric Assay
Specimen Type
UrineSpecimen Required
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.
Container/Tube: Plastic, 13-mL urine tube
Specimen Volume: 4 mL
Collection Instructions:
1. Collect second morning void.
2. No preservative.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Frozen (preferred) | 28 days | |
Refrigerated | 14 days | ||
Ambient | 72 hours |
Reject Due To
Gross hemolysis | Reject |
Specimen with pH <5; Specimen containing preservatives | Reject |
Reference Values
All units are reported in nmol Bone Collagen Equivalents/mmol creatinine.
Pediatric
Males:
Tanner Stage I: 55-508 nmol BCE/mmol creatinine
Tanner Stage II: 21-423 nmol BCE/mmol creatinine
Tanner Stage III: 27-462 nmol BCE/mmol creatinine
Tanner Stage IV: <609 nmol BCE/mmol creatinine
Tanner Stage V: <240 nmol BCE/mmol creatinine
Females:
Tanner Stage I: 6-662 nmol BCE/mmol creatinine
Tanner Stage II: 193-514 nmol BCE/mmol creatinine
Tanner Stage III: 13-632 nmol BCE/mmol creatinine
Tanner Stage IV: <389 nmol BCE/mmol creatinine
Tanner Stage V: <132 nmol BCE/mmol creatinine
Adult (≥18 years of age)
Males:
21-83 nmol BCE/mmol creatinine
Females:
Premenopausal: 17-94 nmol BCE/mmol creatinine
Postmenopausal: 26-124 nmol BCE/mmol creatinine
Day(s) and Time(s) Performed
Monday, Thursday; Varies
Performing Laboratory

CPT Code Information
82570
82523