COLLAGEN CROSS-LINKED N-TELOPEPTIDE (NTx), 24-HOUR URINE

Components
Includes N-Telopeptide/Creatinine Ratio

Specimen Required
Discard first morning urine void. Collect urine voids for the next 24 hour period. The last sample collection should be the first morning specimen voided the following morning at the same time as the previous mornings first voiding. Mix well and send 5 mL urine (1 mL minimum) frozen in an IATA-approved screw-capped plastic urine container. Record total volume on test requisition and specimen label.

Methodology
Chemiluminescence

Stability
Room Temperature: 72 hours; Refrigerated: 5 days; Frozen: 30 days

Reference Range
18-29 years:   5-88 nmol BCE/mmol creat  
30-39 years:   7-51 nmol BCE/mmol creat  
40-49 years:   5-47 nmol BCE/mmol creat  
50-60 years:   6-43 nmol BCE/mmol creat  
Creatinine: By report

Performed
Tuesday, Thursday, Saturday

Turnaround Time5-7 days
Test CodeNTXUQ
CPT-4 Code (s)
82523, 82570
LOINC Codes
Total Volume   Not available  
N-Telopeptide (NTx), 24h urine   Not available  
Creatinine, 24-Hour Urine   Not available  

Warde
Medical
Laboratory