Preferred Sample Type

Urine NTX (N-telopeptide; bone marker/bone markers)

Suitable Specimen Types

  • Plain Spot Urine
10mL plain random urine

Specimen Transport

Usual transport to laboratory. Specimen MUST be protected from light.

Sample Processing in Laboratory

Send to referral laboratory via first class post.

Sample Stability

Specimens must be protected from light.

Urine NTX (N-telopeptide; bone marker/bone markers)

General Information

Please contact the duty biochemist on bleep 2506 prior to analysis and when samples are due to arrive in the laboratory

Patient Preparation

For urine NTX analysis, collect the second vioded urine of the day into a plain universal container, and protect the specimen from light.

Reference Range

Reference ranges provided by referral laboratory (July 2014).

NB: Results are expressed as nmol bone collagen equivalent (BCE)/mmol creatinine.


Adult males:                               15-40 nmol BCE/mmol
Adult females:
   pre-menopause 20-39 yrs    12-36 nmol BCE/mmol
   pre-menopause >39 yrs        14-38 nmol BCE/mmol      
   post-menopause                   15-57 nmol BCE/mmol

The laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital form part of the services provided by University Hospitals Birmingham and are UKAS (United Kingdom Accreditation Service) accredited to the ISO 15189:2012 standard. For a list of accredited tests and other information please visit the UKAS website using the following link:

  • Heartlands, Good Hope and Solihull Hospital pathology laboratories are a UKAS accredited medical laboratory No.8217
  • United Kingdom Health Security Agency laboratory is a UKAS accredited medical laboratory No.8213

Tests not appearing on the UKAS Schedule of Accreditation currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further test information, please visit the test database:

Protection of personal information - Laboratory Medicine comply with the Trust Data Protection policy and have procedures in place to allow the Directorate and its employees to comply with the Data Protection act  1998 and associated best practice and guidance.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235