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Test Code CTX C-Telopeptides (CTx), Serum

Specimen Requirements

Specimen Type: Serum
Container/Tube: Red Top (Plain)
Volume: 6.0mL
Minimum Volume: 0.5mL serum
Collection Instructions: Fast patient 10-12 hours before sample collection.

Sample Stability

** Preferred temperatures for storage prior to and during shipping to NUH **

 

Specimen Type: Serum
Ambient: 6 hours
Refrigerate: 8 hours
Frozen: 3 months

 

Reference Interval

Age Male Female
0  - 29 yrs 0.238 – 1.019 ug/L 0.148 – 0.967 ug/L
30 - 39 yrs 0.225 – 0.936 ug/L 0.150 – 0.635 ug/L
40 - 49 yrs 0.182 – 0.801 ug/L 0.131 – 0.670 ug/L
50 - 59 yrs 0.161 – 0.737 ug/L 0.183 – 1.060 ug/L
60 - 69 yrs 0.132 – 0.752 ug/L 0.171 – 0.970 ug/L
 ≥70 yrs 0.118 – 0.776 ug/L 0.152 – 0.858 ug/L
Pre-menopausal   0.136 – 0.689 ug/L
Post-menopausal   0.177 – 1.015 ug/L

 

 

 

 

 

 

 

 

 

Days and Times Performed

Monday to Friday, TAT 4 days

Methodology

Electrochemiluminescence 

Service Code

31034

Update

Last updated 26/02/2022

Unacceptable Condition

 

Haemolysis NA
Icterus NA
Lipaemic NA
Others NA

 

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

A marker for bone resorption. Monitoring antiresorptive therapies (eg, bisphosphonates and hormone replacement therapy) in postmenopausal women treated for osteoporosis.

Alias

Beta CrossLaps (Beta-CTx),