Test Code AST Aspartate Aminotransferase (AST)

Performing Laboratory

Hunterdon Medical Center Laboratory

Specimen Required

Test updated May 2016

Container/Tube
Preferred	PST (Li Hep) Gel- Mint Green Top
Acceptable	SST
Specimen Volume	3.0mL
Minimum Volume	1.0mL

Specimen Type

Plasma preferred.

Serum acceptable.

Specimen Transport Temperature

Ambient

Specimen Stability

Temperature	Time Frame
Ambient 15-25°C	24 hours
Refrigerated 2-8°C	7 days

Day(s) Test Set up

Monday through Sunday

Reference Values

Age	Female	Male	Units
0-1 day	25-75	25-75	U/L
>1 day-1 year	15-60	15-60	U/L
>1 year-17 years	10-60	10-60	U/L
>17 Years	10-32	10-40	U/L

Methodology

Enzymatic catalytic oxidation

CPT Code

84450

Loinc Code

1920-8