Fatty acids profile, essential, serum or plasma-994

Test info

  
Fatty acids profile, essential, serum or plasma
  
994
  
LAB994
  
MSO
  
Omega fatty acids
Polyunsaturated fatty acids
  

Identification of patients with essential fatty acid deficiency, evaluation of nutritional status, and diet monitoring.

Specimen

  
  • Patient must fast overnight for 12-14 hours
  • Patient must not consume any alcohol for 24 hours prior to collection
  
Serum
  
  
0.5 mL
  
0.15 mL
  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within 45 minutes of specimen collection
  4. Freeze
  
EDTA plasma
Heparin plasma
  

Gold serum separator (SST) tube

Lavender (EDTA), 4mL

Dk green heparin (Li or Na), no gel

 

 

  

Gold

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Lavender/Dk green

Immediately following collection, mix sample thoroughly by gently inverting 5 - 10 times, to prevent clotting

  

Gold

  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin
  3. Transfer serum to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as serum, within 45 minutes of sample collection
  4. Freeze

Lavender/Dk green

  1. Spin
  2. Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as the appropriate plasma type, within 45 minutes of sample collection
  3. Freeze
  

Include information regarding:

  • Treatment,
  • Family history 
  • Tentative diagnosis
  

Frozen (preferred) - 3 months

Refrigerated - 1 week

Ambient - 48 hours

  
  • Grossly hemolyzed specimens
  • Icteric specimens
  • Lipemic specimens
  • Non-fasting specimens

Performance

  
ARUP Laboratories Inc (2013518) via LabCorp (821279): R-NX
  
Varies
  
4 - 10 days
  

Gas Chromatography-Mass Spectrometry

Clinical and Interpretive info

  

An interpretive report will be provided

Billing

  
82542
  
Result 49262-9

Tracking

  
05/29/2019
  
12/18/2023
  
12/18/2023