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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
Primary Collection Container
Royal Blue (K2EDTA) Trace Element
Transport
Serum Frozen
Preferred Transport Temperature
Frozen
Processing
Centrifuge, separate serum or plasma from cells. Send in a screw capped plastic vial.
Stability
Serum
Ambient: 6 hours
Refrigerated: 8 hours
Frozen: 28 days
Plasma
Ambient: 24 hours
Refrigerated: 8 days
Frozen: 28 days
Minimum Testing Volume
0.6 mL
Reference Range
ADULTS
Males >21 years of age 154-771 pg/mL
Pre-Menopausal Females 121-747 pg/mL
Post-Menopausal Females 189-1003 pg/mL
PEDIATRICS
MALES FEMALES
≤6 years 446-1756 pg/mL 179-1690 pg/mL
7-11 years 59-1975 pg/mL 300-1978 pg/mL
12-16 years 393-2131 pg/mL 151-1912 pg/mL
17-21 years 263-1554 pg/mL 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.