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:
Documentation:
Custom Panel:
No
PRODUCTION SCHEDULE
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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