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Test Code LAB12302 Collagen Type 1, C-Telopeptide (CTx)

Department

SEND OUTS

Reference Lab Test Number

CTX

Refer To

Warde Medical Laboratory

Primary Collection Container

Gold (SST)

Alternate Collection Container

Lavender 4 mL (K3EDTA)

Transport

Serum frozen

Preferred Transport Temperature

Frozen

Processing

Draw blood in a SST. Allow blood to clot 10-15 minutes at room temperature, then centrifuge separate and send 1.0 mL serum in a screw-capped plastic vial.

Stability

Ambient: Unacceptable

Refrigerated: 72 hours

Frozen: 3 months

Minimum Testing Volume

0.5 mL

Reference Range

Reference range for males:

18-30 years: 72-1,395 pg/mL

31-50 years: 46-787 pg/mL

51-70 years: 34-896 pg/mL

>70 years: Not established

Reference range for females:

Premenopausal: 39-623 pg/mL

Postmenopausal: 51-1,296 pg/mL

Methodology

Chemiluminescence

Performed

Tuesday and Friday

Reported

6 days

CPT Codes

-82523

Unacceptable Conditions

Grossly lipemic, moderately hemolyzed, grossly icteric.