5-HIAA, quant, 24-hour urine-13488
Test info
5-HIAA, quant, 24-hour urine
13488
LAB13488
5HI
5HIAA
5-HIAA
5-HIAA, Quantitative, 24-Hour Urine
5-Hydroxyindoleacetic acid (HIAA), quantitative, 24 hr urine
Serotonin metabolite, 24 hr urine
5-HIAA
5-HIAA, Quantitative, 24-Hour Urine
5-Hydroxyindoleacetic acid (HIAA), quantitative, 24 hr urine
Serotonin metabolite, 24 hr urine
Specimen
Patient should avoid consumption of bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for a 72 hour period prior to and during collection.
Urine, 24-hr
4 mL
1 mL
- Instruct the patient to void at 8 AM and discard the specimen.
- Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning).
- Screw the lid on securely.
- Label container with patient's name, date, and time.
- Measure and record total urine volume
- Include the total volume on the request form
- Mix well
- Transfer a 4 mL (minimum 1.0mL) aliquot to a Transfer vial/tube with cap - 12mL (LabCorp)
24 hr urine preserved with Boric acid
Ambient (preferred) - 7 days
Refrigerated - 14 days
Frozen - 14 days
Freeze/thaw cycles - stable x3
pH < 2
Performance
LabCorp Burlington (004069): R-LC
Mo - Fr
4 - 8 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Clinical and Interpretive info
0.0 - 14.9 mg/24 hours
Serotonin measurement is used in conjunction with urinary 5-hydroxyindoleacetic acid (5-HIAA) and/or serum chromogranin A in the diagnosis of carcinoid syndrome.
Billing
83497
Result 31203-3
Tracking
03/27/2019
12/22/2023
12/22/2023