DPD N-Telopeptide, 2-Hour Urine

Overview

  • EPIC Code:
  • LAB816
  • Soft Test Code:
  • DPDTP
  • Send Out Test Code:
  • 14466
Alternate Names
  • Collagen Crosslinked NTX
  • Collegen Cross-Linked N-Telopeptide (NTx)
  • DPD
  • DPD (N-Telopeptide)
  • DPDNT
  • N-Telopeptide
  • N. Telopeptide NTX
Included Tests

Creatinine; N-Telopeptide


Specimen Collection & Preparation

Specimen Overview

Order and specimen must state which collection performed

Specimen Requirements:

-OR-

2.0 mL Second Morning Voided Urine in a Plastic Container
Minimum Volume:
1.0 mL Urine*

* This volume does not allow for repeat testing

Specimen Information:

Do not add preservatives


Collection Instructions:

Second Morning Voided Urine Collection 

OR

2 Hour Urine Collection 


Rejection Criteria:

Acidified specimen

Peritoneal dialysate


Transport and Storage:
  • Ambient: 72 Hours
  • Refrigerated: 5 Days

    Preferred

  • Frozen (-20 C or colder): 30 Days

Clinical Interpretation

Reference Range:

Male 18 years to 29 years: 12 - 99 nmol BCE/mmol creatinine
Male 30 years to 59 years: 9 - 60 nmol BCE/mmol creatinine
Female, Premenopausal: 4 - 64 nmol BCE/mmol creatinine

Creatinine, Random, Urine

≤6 Months 2-32 mg/dL
7-11 Months   2-36 mg/dL
1-2 Years 2-128 mg/dL
3-8 Years 2-149 mg/dL
9-12 Years 2-183 mg/dL
>12 Years Male 20-370 mg/dL
>12 Years Female 20-320 mg/dL


Test Comments:

BCE = Bone Collagen Equivalents: 
This comment is only reported on FEMALE patients: Results are primarily used for monitoring the response to therapy. A value within the premenopausal reference range does not rule out osteoporosis or the need for therapy.


Methodology:
  • Enhanced Chemiluminescence

Production Schedule

Sites Performed
  • Quest - Chantilly
Days Performed
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Sendouts - Clinical
Turn Around Time

3 to 6 days


Coding & Compliance

CPT Coding

82523, 82570


Medical Necessity May Apply