Serotonin, serum-13377

 

 

Test info

  
Serotonin, serum
  
13377
  
LAB13377
  
SEROTONIN
  
5-HT
5-Hydroxytryptamine
  

Serotonin measurement is used in conjunction with urinary 5-hydroxyindoleacetic acid (5-HIAA) and/or serum chromogranin A in the diagnosis of carcinoid syndrome.

Specimen

  

Monoamine Oxidase inhibitor drugs should be discontinued for at least one week prior to sampling since they test to increase the level of Serotonin

  
Serum
  
  
1.0 mL
  
0.5 mL
Submission of the minimum volume does not allow for repeat testing
  

Immediatley following collection, mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within 30 minutes
  

Gold serum separator (SST) tube

  
  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within 30 minutes of sample collection
  
  

Ambient (preferred) - 7 days

Refrigerated - 7 days

Frozen - 14 days

Freeze/thaw cycles: stable x2

Performance

  
LabCorp Burlington (120204): R-LC
  
Tu - Fr, Su
  
3 - 5 days
  

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Clinical and Interpretive info

  

Age  (years)          

Male (ng/mL)   

Female (ng/mL)   

0 - 12      

46 - 321      

22 - 271  

13 - 60      

31 - 207      

31 - 207  

>60      

23 - 230        

8 - 217   

Billing

  
84260
  
Result 27057-9

Tracking

  
04/11/2019
  
05/30/2023
  
05/30/2023