ATN Profile

Test Code

ATNP

Specimen Name

ATN Profile

CPT Codes

  • 83520 x 4

Collect

2 EDTA Plasma - poured off into specimen transport tubes

Stability

CRITICAL FROZEN

Volume

3 mLs

Minimum Volume

2.5 mL (This volume DOES NOT allow for repeat testing.)

Performed

Reported 7-10 days

Components

Includes: Beta Amyloid 42/40 Ratio; Phosphorylated Tau 181 (pTau-181); Neurofilament Light Chain (NfL)

Additional Information

Plasma must be separated immediately and frozen.

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Test Information

How to Label Your Sample

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Common Test Phrases

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT