CTx Collagen Type I-C

Last Modified: 8/21/2023 3:13:32 PM

  Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:  
Client Notes:  
Patient Preparation: 12 hour fasting is required
Specimen Requirements: 2.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions: Fasting Morning collection between 8:00 a.m. and  10:00 a.m.
  *Diurnal variations cause elevated levels at night*

Allow blood to clot 10-15 minutes ambient
Centrifuge and separate, and freeze serum
Minimum Volume: 0.5 mL
Transport & Storage: Temperature/Stability: 3 months Frozen
Rejection Criteria: Moderate to grossly hemolyzed, lipemic or icteric
Reference Range:
Adult Male  
18-29 Years 87-1200 pg/mL
30-39 Years 70-780 pg/mL
40-49 Years 60-700 pg/mL
50-68 Years 87-345 pg/mL
Adult Female  
18-29 Years 60-640 pg/mL
30-39 Years 60-650 pg/mL
40-49 Years 50-465 pg/mL
>49 Years Not established
Pediatric Male  
5-9 Years 574-1849 pg/mL
10-13 Years 519-2415 pg/mL
14-17 Years 435-2924 pg/mL
Pediatric Female  
5-9 Years 574-1849 pg/mL
10-13 Years 519-2415 pg/mL
14-17 Years 242-1291 pg/mL
Critical Ranges:  
Test Comments:  
Methodology: Immunoassay
Clinical Significance:  
Custom Panel: No


Turn Around Time: 4 to 7 days
Days Performed: Tuesday, Thursday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: CCTX
EPIC Test Code: LAB2546
Send Out Test Code: 17406
Alternate Test Names: C Telopeptide; Collagen C-Telopeptide; CTx; CTX Collagen Type 1-C; CTx Collagen Type I C-Telopeptide
Included Tests:  
CPT Coding: 82523

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