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N-Telopeptide, Serum

N-Telopeptide, Serum

Alternate Test Name

NTX-Telopeptide; N-terminal Telopeptide (NTx), Serum

Epic Mnemonic
Sunquest Mnemonic

LAB2130
NTPEP

Category

Sendouts

Methodology

Enzyme-Linked Immunosorbent Assay (ELISA)

Test Performance Schedule

Tuesday, Thursday

Result Availability

1 – 5 days

Specimen Required

Container

Gold top (SST) or Red top (serum) tube

Volume

Pref. Vol.: 0.5 mL serum
Min. Vol.: 0.1 mL serum

Collection Instructions

• Routine venipuncture
• Immediately after collection, gently invert tube 5-10 times
• Clot 30 minutes
• Promptly centrifuge 15 minutes
• Immediately transfer serum to plastic tube
• Freeze

Transportation Instructions

Frozen

Stability

After separation from cells:
• Room temperature: Unacceptable
• Refrigerated: 24 hours
• Frozen (preferred): 28 days

Causes for Rejection

Severely hemolyzed, lipemic, or icteric specimens

Remarks

A morning collection from fasting patients is preferred due to diurnal variation of markers and food effects

CPT Codes

82523

Effective/Revised

9/4/2019

 

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