Laboratory Medicine

Test catalogue

Aspartate Aminotransferase (AST, SGOT)
Test Name Aspartate Aminotransferase (AST, SGOT)
Specimen Type / Requirements Container Type = 1 Gold Top (SST) Minimum Testing Volume = 1 ml serum Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Serum or heparinized plasma collected with or without gel separator. Write your initials, date and time of collection on the collection label or requisition. Laboratory Staff Instructions Separate serum or plasma from cells within 2 hours of collection Sample Rejection Criteria: Unlabeled or specimen of non sufficient quantity. Avoid multiple freeze - thaw cycles. Stability: AST is stable for 1 day at room temperature, 1 week, refrigerated at 2–8°C and frozen for 1 month. Transportation: Send sample to core lab as soon as possible.
Required Documentation
Turnaround Time (TAT) 1hr for Trauma/Stat, 2hr for routine	Test Utilization
Reference Value Adult: 7 - 40 U/L
Test Code AST	Methodology Spectrophotometric (Kinetic rate method)
Testing Location SMH-Biochemistry	Other Information Last Updated: March 27, 2023

Aspartate Aminotransferase (AST, SGOT)

Test Name

Aspartate Aminotransferase (AST, SGOT)

Specimen Type / Requirements

Container Type = 1 Gold Top (SST)

Minimum Testing Volume = 1 ml serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Serum or heparinized plasma collected with or without gel separator. Write your initials, date and time of collection on the collection label or requisition.

Laboratory Staff Instructions Separate serum or plasma from cells within 2 hours of collection

Sample Rejection Criteria: Unlabeled or specimen of non sufficient quantity. Avoid multiple freeze - thaw cycles.

Stability: AST is stable for 1 day at room temperature, 1 week, refrigerated at 2–8°C and frozen for 1 month.

Transportation: Send sample to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

1hr for Trauma/Stat, 2hr for routine

Test Utilization

Reference Value

Adult: 7 - 40 U/L

Test Code

AST

Methodology

Spectrophotometric (Kinetic rate method)

Testing Location

SMH-Biochemistry

Other Information

Last Updated: March 27, 2023