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Aspartate Aminotransferase

Test Code
LAB131


Alias/See Also
AST, SGOT


CPT Codes
84450

Preferred Specimen
5 mL Heperanized Plasma or SST serum


Minimum Volume
2 mL


Instructions
Routine venipuncture. 5ml Red/gold top serum separator tube or 4.5ml light green top (heparin) tube. Minimum Volume 2ml. Centrifuge within 2 hours of collection.


Specimen Stability
Refrigerate, stable 72 hours; stable 8 hours at room temperature


Methodology
Multiple-point rate:The rate of change in reflectance density is proportional to enzyme activity in the sample.

Setup Schedule
Daily


Report Available
Within 24 hours


Reference Range
Female: 14-46 U/L Male: 17-59 U/L


Clinical Significance
AST measurements are used in the diagnosis and treatment of certain types of liver disease and heart disease.


Performing Laboratory
CH CHOMP HOSPITAL LAB (831-625-4811): CH CHEMISTRY



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.