Amino Acids, Plasma w/ Consultation




Test Mnemonic

PAABI

CPT Codes

  • 82139 - QTY (1)

Performing Laboratory

n/a


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaSodium heparin (Green) FrozenRemove plasma from cells within 45 minutes of collection. Freeze plasma.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mLPlasmaLithium heparin (Green) FrozenRemove plasma from cells within 45 minutes of collection. Freeze plasma.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
AmbientUnacceptable
Refrigerated24 hours, after separation from cells
Frozen2 weeks, after separation from cells

Days Performed

Mon - Fri

Turnaround Time

1 - 5 days

Methodology

Name Description
High Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV) 

Reference Range

Phenylalanine
Sex Age From Age To Type Range Range Unit
   Days30 DaysNormal38 - 137umol/L
 1 Months23 MonthsNormal31 - 75umol/L
 2 Years18 YearsNormal26 - 91umol/L
 19 Years99 YearsNormal35 - 85umol/L
Tyrosine
Sex Age From Age To Type Range Range Unit
   Months1 MonthsNormal55 - 147umol/L
 1 Months24 MonthsNormal22 - 108umol/L
 2 Years18 YearsNormal24 - 115umol/L
 18 Years99 YearsNormal34 - 112umol/L

Special Info

Indicate clinical condition, diet and/or drug therapy information (if applicable), and family history information (if relevant). Age of patient or date of birth needed.

Clinical Info

Evaluation for disorders of amino acid metabolism or mitochondrial disorders; evaluation of unexplained mental retardation, neurological deterioration, failure to thrive, recurrent vomiting, acidosis or hyperammonemia.