Pathology tests database

Sample and container requirements

EDTA Plasma

Minimum volume required

0.5 mL plasma

Special requirements

Separate and freeze plasma within 24 hours of specimen collection.

Patient preparation

Suggest take samples for monitoring at approximately the same time of day to improve interpretation of results. Fasting is not required for this test.

Sample viability

Turnaround time

7 days

Reference range

Pre – menopausal females: 0.12 – 0.75 μg/L Post – menopausal females 0.19 – 1.00 μg/L Males >21 years: 0.15 – 0.77 μg/L Paediatric females: <6 years: 0.18 – 1.69 μg/L 7 – 11 years: 0.30 to 1.98 μg/L 12 – 16 years: 0.15 – 1.91 μg/L 17 – 21 years: 0.11 to 1.13 μg/L Paediatric males: <6 years: 0.45 – 1.76 μg/L 7 – 11 years: 0.66 – 1.98 μg/L 12 – 16 years: 0.39 – 2.13 μg/L 17 – 21 years: 0.23 – 1.55 μg/L (Source: Immuno Diagnostic Systems)

Clinical guidance

Please refer to LabTestsOnlineUK to learn more about CTX. https://labtestsonline.org.uk/tests/bone-markers

Notes