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HelpTest Code LAB21008 Collagen Type 1, C-Telopeptide (CTx)
Department
Send Outs
Reference Lab Test Number
BCTX
Collection Requirements
Fasting recommended. An early morning specimen is preferred.
Refer To
Warde Medical LaboratoryPrimary Collection Container
Lavender 4 mL (K3EDTA)
Alternate Collection Container
Gold (SST)
Transport
Serum/Plasma Frozen
Preferred Transport Temperature
Frozen
Processing
Centrifuge, separate serum or plasma from cells. Send in a screw capped plastic vial.
Stability
PlasmaAmbient: 24 hours
Refrigerated: 8 days
Frozen: 28 days
Serum
Ambient: 6 hours
Refrigerated: 8 hours
Frozen: 28 days
Minimum Testing Volume
0.6 mL
Reference Range
ADULTSMales >21 years of age 154-771 pg/mL
Pre-Menopausal Females 121-747 pg/mL
Post-Menopausal Females 189-1003 pg/mL
PEDIATRICS
<=6 years
Male: 446-1756 pg/mL
Female: 179-1690 pg/mL
7-11 years
Male: 659-1975 pg/mL
Female: 300-1978 pg/mL
12-16 years
Male: 393-2131 pg/mL
Female: 151-1912 pg/mL
17-21 years
Male: 263-1554 pg/mL
Female: 109-1130 pg/mL
Methodology
Chemiluminescence/IDS iSYS
Performed
Tuesday, Friday
Reported
2-5 days
CPT Codes
82523
Unacceptable Conditions
Lipemia, Hemolysis, Heparin (sodium or lithium), Samples that exceed stability for specimen type.