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Test ID FHIAA 5-HIAA (5-Hydroxyindoleacetic acid), Plasma

Specimen Required

Patient preparation: Patient should fast overnight prior to collection of specimen.

Specimen Type: Plasma

Container/Tube: Z tube

Specimen Volume: 3 mL


Collection Instructions: Draw 10 mL of blood in special Z-tube (MCL T701). Separate plasma from cells immediately after draw and send 3 mL of plasma frozen in plastic vial.

Method Name


Reporting Name

5-HIAA, Plasma

Specimen Type


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Frozen 90 days

Reference Values

Up to 22 ng/mL

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Inter Science Institute

Test Classification

This GCMS assay was developed and its performance characteristics determined by Inter Science Institute. It has not been cleared or approved by the FDA and such approval or clearance is not required at this time. Values obtained with different methods, different laboratories or with kits cannot be used interchangeably with the results on this report. The results cannot be interpreted as absolute evidence of the presence or absence of malignant disease.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FHIAA 5-HIAA, Plasma 1693-1


Result ID Test Result Name Result LOINC Value
FHIAA 5-HIAA, Plasma 1693-1

NY State Approved