5-HIAA, Plasma

Test Code

PHIAA

Specimen Name

5-HIAA, Plasma

CPT Codes

  • 83497

Collect

EDTA Plasma

Stability

CRITICAL FROZEN

Volume

0.5 mL

Minimum Volume

0.2 mL

Performed

Performed Varies - Reported 5-8 days

Components

Additional Information

If clinically feasible, discontinue acetaminophen and tryptophan containing supplements at least 48 hours prior to specimen collection. The patient should abstain from eating nuts, especially walnuts, and limit fruits, vegetables, and caffeinated beverages or foods to one serving per day in the 24 hours prior to specimen collection.

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT