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Test Code Ammonia Ammonia Level

Specimen Type

Blood

Minimum Volume

2.0 mL

Container

Dark Green-Sodium Heparin

Special Handling

Collect on ice/deliver immediately. Hemolyzed specimens are unacceptable.

Centrifuge and separate plasma from cells within 15 minutes of sample collection.

STAT Turnaround Time

30 Minutes

Routine Turnaround Time

30 Minutes

Methodology

Glutamate Dehydrogenase

Reference Range

0-14 Days: 56-92 mcmol/L
>14 Days-1 Month: 21-50 mcmol/L
>1 Month: 11-32 mcmol/L

CPT Code

82140