Phenylalanine + Tyrosine, quant, plasma-994

Test info

  
Phenylalanine + Tyrosine, quant, plasma
  
994
  
LAB994
  
MSO
  
  • Evaluation of patients with hyperphenylalaninemia or monitoring effectiveness of dietary therapy
  • Medical monitoring of tyrosinemia

Specimen

  
Sodium heparin (Na hep) plasma
  

Dk green Sodium heparin (Na hep), no gel

  
0.5 mL
  
0.25 mL
  

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting

  
  1. Spin within two (2) hours of sample collection
  2. Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as Na hep plasma
  3. Freeze
  

Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp)

 

  
EDTA plasma
Serum
  

Lavender (EDTA), 4mL

Gold serum separator (SST) tube

Red serum vial/tube - 5 mL

  

Lavender:

Immediately following collection, mix sample thoroughly by gently inverting 8 - 10 times to prevent clotting

Gold/Red:

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

  

Lavender:

  1. Spin within two (2) hours of sample collection
  2. Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as EDTA plasma
  3. Freeze

Gold/Red:

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

Frozen (strict) - 14 days

Refrigerated - NO

Ambient - NO

  

Ambient or thawed specimens

Performance

  
LabCorp Burlington (323334): R-NX
  
Mo - Fr
  
3 - 5 days
  

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

Clinical and Interpretive info

  

An interpretive report will be provided

Billing

  
82136 x 2
  
Result 20660-7

Tracking

  
05/24/2019
  
12/30/2025
  
12/30/2025