Collagen Type I C-Telopeptide (CTx)
What it measures
- C Telopeptide (CTX)LOINC 41171-0
Before the visit
Fasting required
A minimum of 12 hours fasting is required. Fasting morning collection 8-10 am (Diurnal variations cause elevated levels at night). Dietary supplements containing biotin may interfere in assays and may skew results to be either falsely high or falsely low. For patients receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For patients on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.
Specimen
- Specimen
- 1 mL serum
- Minimum volume
- 0.5 mL
- Container
- Transport tube
- Temperature
- Frozen
Allow blood to clot (30-60 minutes) at room temperature. Centrifuge and separate the serum from the cells and transfer serum to a clean transport tube. Freeze as soon as possible.
Turnaround
Set up: Tues, Thurs, Sat; Report available: 4 days
Billing
CPT 82523