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LABORATORY TEST DIRECTORY

N-Telopeptide, Cross-Linked, Urine

CPT Code(s): 82523
Specimen Required: Patient Preparation:For monitoring therapy, a baseline specimen should be collected prior to initiation of therapy. Subsequent specimens for comparison should be collected at the same time of day as the baseline specimen.
Collect:Second-morning void or 24-hour urine. Refrigerate during collection. Collect without preservative.
Specimen Preparation:Transfer a 1 mL aliquot of urine from a well-mixed, second-morning void or 24-hour collection to an RDL Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature:Frozen.
Stability:Ambient: 24 hours; Refrigerated: 1 week; Frozen: 2 years
New York DOH Approval Status: This test is New York DOH approved.
Aliases:
  • Collagen CrosslinksCross-Linked N-TelopeptideCrosslinked N-telopeptide of Type I CollagenN-Telopeptide, UrineNTxNTX CreatinineNTX UrineOsteomarkOsteoporosis