Amino Acid Analysis for Urea Cycle Disorders, LC/MS-MS, Plasma

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Category:

CPT Code:

82136

Test Type: 0.5 mL Plasma, FROZEN
Stability Time:
Temperature Period
Freeze 14 days
Room Unstable  
Refrigerator Unstable

Overview:

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Used for diagnosis and treatment monitoring of patients with urea cycle disorders; arginase deficiency, argininosuccinate lyase deficiency, carbamoyl phosphate synthetase deficiency, citrullinemia, N-acetylglutamate synthetase deficiency, and ornithine transcarbamylase deficiency.

Component(s)
Panel/Test
Reflex Conditions
Test:
700022 Citrulline
  
Test:
700015 Glutamine
  
Test:
700045 Arginine
  
Test:
700034 Argininosuccinate
  
Test:
700063 Interpretation
  
Test:
700064 Director Review
  
Reflexes to:
700471 Disclaimer:
 R
Test:
700065 Methodology
  
Test:
700218 Urea Cycle Dx,Pl
  

Collection Details:

Collection Instructions:

PREFERRED: Frozen plasma from green-top (sodium heparin) tube. frozen plasma from lavender-top (EDTA) tube OR frozen ACCEPTABLE: Frozen plasma from lavender-top (EDTA) tube or frozen plasma from PPT(TM). Frozen serum from serum separator tube (SST) or frozen serum from red-top tube will not be rejected. NOTE: Plasma reference ranges will be applied to all specimen types.

Separate plasma from cells. Transfer specimen to plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, PLEASE SUBMIT SEPARATE FROZEN SPECIMENS FOR EACH TEST REQUESTED.