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N-Telopeptide, Urine

N-Telopeptide, Urine

Alternate Test Name

NTX-Telopeptide, Urine

Epic Mnemonic
Sunquest Mnemonic

LAB816
NTPUB

Category

Sendouts

Methodology

NTXUR: Chemiluminescence Immunoassay
NTXCT: Enzymatic Colorimetric Assay

Test Performance Schedule

Monday, Thursday

Result Availability

1 - 5 days

Specimen Required

Container

Yellow top (no preservative) urine tube

Volume

Pref. Vol.: 4.0 mL aliquot from well-mixed second morning void
Min. Vol.: 0.5 mL aliquot from well-mixed second morning void

Collection Instructions

• Collect second morning void
• Collect without preservative
• Outpatients – keep specimen refrigerated until delivery to lab

Transportation Instructions

Frozen

Stability

• Room Temperature: 72 hours
• Refrigerated: 14 days
• Frozen (preferred): 30 days

Causes for Rejection

• Sample contaminated with blood
• Specimen with pH < 5
• Specimen containing preservatives

Remarks

For 24 hours before this test do not take multivitamins or dietary supplements containing biotin (vitamin B7), which is commonly found in hair, skin, and nail supplements and multivitamins

CPT Codes

82523, 82570

Effective/Revised

11/19/2019

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