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Test Compendium

Test Name


Test Code

  • 6606

Test Synonym

  • N-Telopeptide (NTx), Serum

Minimum Volume

  • 0.5 mL

Specimen Type

  • Serum

Primary Container

  • Serum Separator Tube, Plain Red Top Tube

Transport Temp

  • Refrigerated

Specimen Requirements

  • Serum must be transferred to a plastic transport tube. Serum must be separated from red cells or gel barrier immediately after clot formation and centrifugation.

Specimen Retention

  • For monitoring therapy, baseline specimens should be collected just prior to or on the day of therapy initiation. Subsequent specimens for comparison should be collected at approximately the same time of day as the baseline specimen.