C-Telopeptide

Carboxyterminal Cross-linking Telopeptide of Bone Collagen;Collagen Cross-linked C-Telopeptide; Crosslaps; Type 1 Collagen

9 days

Electrochemiluminescence immunoassay (ECLIA)

Special Instructions:
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.

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For in vitro diagnostic use as an indicator of human bone resorption. This test may be used as an aid in monitoring bone resorption changes of antiresorptive therapies in postmenopausal women, individuals with osteopenia, and in predicting skeletal response (bone mineral density) in postmenopausal women undergoing antiresorptive therapies.

• Hormone replacement therapies (HRT) with hormones and hormone-like drugs

• Bisphosphonate therapies

Serum (preferred) or plasma, FROZEN

1 mL

Gel-Barrier Tube, Green Top (Lithium Heparin) Tube, Lavender Top (EDTA) Tube or Pink Top (K2 EDTA) Tube

It is recommended to draw blood as fasting, morning samples. Samples should not be taken from patients receiving therapy with high biotin doses (i.e. >5 mg/day) until at least 8 hours following the last biotin administration.

Separate serum from cells within 45 minutes of collection. Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.