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

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
  
  1. Instruct the patient to void at 8 AM and discard the specimen.
  2. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning).
  3. Screw the lid on securely.
  4. Label container with patient's name, date, and time.

How to collect a 24 hr urine sample

  
  1. Measure and record total urine volume
  2. Include the total volume on the request form
  3. Mix well
  4. 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