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36421: Collagen Cross-linked N-telopeptide (ntx), 24 Hr Urine Print View
Total Volume     mL 
N-Telopeptides (NTx), 24h U CALC  view ref range  nM BCE/mM cr 
Creatinine, 24 Hr. CALC  view ref range  g/24h 

PRIMARY
1 Urine 24 hour 2 (1) mL   Room Temperature - 72 Hour(s)/Refrigerated - 5 Day(s)/Frozen - 30 Day(s)  
ALTERNATE

Predicting skeletal response to antiresorptive therapy. In postmenopausal women, baseline N-Telopeptide (NTx) values are associated with significant risk of bone loss (as measured by bone mineral density). A greater than 30% decrease from baseline after 6 months of hormone replacement therapy or a greater than 40% decrease from baseline after 3 months of antiresorptive therapy (alendronate sodium) indicates a significant therapeutic effect.

Do not include first morning specimen; collect all subsequent
voidings. The last sample collected should be the first
morning specimen voided the following morning at the same
time as the previous morning's first voiding. Specify
24-hour total volume on the container and test
requisition.
Setup Schedule
Tuesday, Thursday, Saturday

Reported (Analytical Time)
Next day

CPT Codes
82523,82570

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport Temperature: Refrigerated
Methodology: Chemiluminescene






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