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HelpTest Code LAB6742 Glutaric Acid
Aliases
Glutaric
Specimen Type
Serum or Plasma:
Green Top -Lithium Heparin (Preferred)
Dark Green Top – Sodium Heparin
Red Top -Plain
Gold Top -SST
Processing Instructions
Green or Gold top-CENTRIFUGE per procedure / Red Top – Clot 60 minutes in upright position
Pipette off plasma or serum into pour off tube
Attach original tube to pour off tube with rubber band
Store and ship sample Frozen on dry ice.
Specimen Volume
Preferred: 3.0 mL (1.5 mL serum/plasma)
Minimum: 1.5 mL (0.5 mL serum/plasma)
Temperature
Frozen (dry ice)
Sample Stability
Refrigerated: 24 hours
Frozen @-20 Celsius: 30 days
Frozen @ -80 Celsius: Indefinitely
Test/Batch Schedule
Run once a week (day varies)
TAT
10 days
Test Components
Glutaric Acid
3- Hydroxyglutaric Acid
Reference Range
Glutaric Acid0.0-249.0 ng/mL
3- Hydroxglutaric Acid
0.0-64.0 ng/mL
CPT
82542
Performing Section
Biochemical Genetics
Purpose/Principle
Glutaric acidemia type I and glutaric acidemia type II are characterized by the accumulation and excretion of glutaric acid. This method measures the amount of glutaric acid present using stable isotope dilution methodology