24 Hour Urine, 5-Hydroxyindoleacetic Acid (5-HIAA), Quantitative Build info

Synonyms

• 5 HIAA, URINE, QUANTITATIVE, 24 HOUR
• 5HIAA W/CREATININE 24 HR UR
• HYDROXYINDOLEACETIC ACID 24 HR
• LAB352

Short Name

5 HIAA QUANT 24U

Procedure Master Number

LAB352

Procedure ID

35199

Clinical Info

5-HIAA is the end product of serotonin (5-hydroxytryptophan) and tyrptophan metabolism. Patients with carcinoid tumors of the midgut, e.g., ileum, produce high concentrations of 5-HIAA. Patients with carcinoid tumors of the foregut and hindgut may produce little or no 5-HIAA or do so intermittently..

Specimen Type

Urine

Container

24hr Ur 25mL 6N HCl

Collection Instructions

Container/Tube: 24 hours urine container
Specimen:10 mL aliquot of a 24-hour urine collected with 25 mL of 6N HCl (5 mL min) please
indicate TV on cup
Urine without preservative is acceptable if pH is below 6.
Transport Temperature: Refrigerated
Stability: 7 Days Room Temperature
30 Days Refrigerated
Collection Instructions
Collect 24-hour urine with 25 mL 6N HCl to maintain a pH ≤ 3. If no preservative is used, specimen must be stored refrigerated during collection but shipped frozen and pH must be > 6.

Transport Instructions

Refrigerated

Specimen Stability

7 Days Room Temperature
               30 Days Refrigerated
 
 Keep urine refrigerated during collection if preservative is not used. Record 24-hour urine volume on t

Methodology

High Performance Liquid Chromatography (HPLC) • Electrochemical Detection

Days Performed

TAT: 2-5 Days

Performing Laboratory

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

82570
83497

PDM

5901716

Results