Pathology

Test & Collection Guide

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C-Telopeptide

Ordering information:

C-Telpeptide is a bone turnover marker used for monitoring purposes.

Sample should be Fasting and collected in AM.

Please send to laboratory ASAP after collection.

Alternate names:

CTx

Laboratory:

Referred Test

Test Code:

CTX

Specimen types:

Plasma

Container types:

EDTA

Collection Instructions:

Transport specimen at Room Temperature to lab
Sample haemolysis may make this test unreportable

Patient should be fasting.

Minimum Adult Volume:

2 mL

Paediatric Minimum Volume:

1 mL

Frequency:

Daily

Result Turnaround Time:

3-4 days

Reference Interval:

Female:

Age	Reference intervals: ng/L
6 months – < 6 yrs	450 – 1800
6 – <11 yrs	820 - 2010
11 – <15 yrs	490 - 2760
15 - <16yrs	120-1730
16 – <20 yrs	120 - 1590
20 – <50yrs* *This reference interval applies to pre-menopausal women, values can be higher in < 40 y.o.	150 – 800
50 – <70yrs * *This reference interval applies to post- menopausal women.	50 – 800
≥ 70 yrs	100 – 1000

Male:

Age	Reference intervals: ng/L
6 months – < 6 yrs	450 – 1800
6 – <10 yrs	1050 - 2380
10 – <16 yrs	1000 - 2900
16 - <20 yrs	500 - 2430
20 – <25 yrs* *Please note values can be higher before growth plate closure.	400 – 900
25 – <70 yrs	100 – 600
≥ 70 yrs	100 – 750

Laboratory Use Only

Storage Instructions:

C-Telopeptide is a bone turnover marker used for monitoring purposes.

Laboratory Notes:

Deliver to Laboratory without delay, spin,separate and freeze.

External Laboratory:

Alfred Hospital

External Laboratory details...