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N-Telopeptide Cross-links (NTx) Urine Test, Serial Monitor, Random

A N-Telopeptide Cross-links Urine Test ordered for the evaluation of Osteoporosis and assessment of Antiresorptive Therapy.

Sample Report

Test Code: 511097

CPT Code: 82523, 82570

Also Known As: N-Telopeptide Cross-Links (NTx) Urine Test


Preparation: No special preparation required.

Test Results: 5-7 days. May take longer based on weather, holiday or lab delays.


Walk-In Lab’s N-Telopeptide Cross-links (NTx) urine test is used to evaluate osteoporosis and assess antiresorptive therapy.

The N-Telopeptide Cross-links urine test also goes by NTx. Fasting is not required before taking the test.  For people without insurance or a doctor's order, Walk-In Lab's NTx test is a confidential, convenient and cheap alternative.

N-telopeptide (a N-terminal telopeptide of type 1 collagen a peptide fragment from the amino terminal end of the protein matrix) helps evaluate bone resorption. Physicians typically recommend taking the NTx test as a baseline measurement before starting osteoporosis therapy, and again three to six months after therapy. Osteoporosis occurs when bones thin and weaken. Because bone is an active tissue, it undergoes the process of both formation and resorption. Net loss occurs when the resorption rate exceeds the rate of formation. New bone resorption assay detects biochemical markers, which reflect this activity, and identifies/ monitors abnormal bone resorption rates, and the effectiveness of nutritional, supplemental and lifestyle regimes. Osteoporosis primarily affects post-menopausal women.

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