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Asparate Aminotransferase (AST)
MessageOrder alone or as part of a liver function panel
Performed in the Chemistry Lab x5820
10.2018
Performed in the Chemistry Lab x5820
10.2018
Test Code
AST
Alias/See Also
Glutamate Oxaloacetate Transaminase (GOT)
CPT Codes
84450
Preferred Specimen
Plasma from a green top (PST) tube
Minimum Volume
1 mL
Instructions
Centrifuge within 2 hours of collection
Transport Container
Green Top (PST) tube
Transport Temperature
Room temperature
Specimen Stability
2 - 8 oC: 7 days
Methodology
NADH (without P-5'-P) Kinetic rate (Abbott Architect)
Setup Schedule
This test is run 24 hours per day, 7 days per week.
Limitations
Hemolyzed samples should not be used. Hemolysis may cause falsely elevated results.
Reference Range
35 - 140 IU/L (0 - 5 days)
20 - 60 IU/L (5 days - 3 years old)
15 - 50 IU/L (3 - 6 years old)
15 - 40 IU/L (6 - 9 years old )
10 - 60 IU/L (9 - 11 years old)
15 - 40 IU/L (11 - 15 years old)
10 - 45 IU/L (15 - 19 years old)
10 - 42 IU/L (> 19 years old)
20 - 60 IU/L (5 days - 3 years old)
15 - 50 IU/L (3 - 6 years old)
15 - 40 IU/L (6 - 9 years old )
10 - 60 IU/L (9 - 11 years old)
15 - 40 IU/L (11 - 15 years old)
10 - 45 IU/L (15 - 19 years old)
10 - 42 IU/L (> 19 years old)
Clinical Significance
This test is used in the diagnosis and treatment of liver and heart diseases
