A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
AST
MessageTest performed at York Hospital Laboratory.
Test Code
AST
Alias/See Also
SGOT
CPT Codes
84450
Preferred Specimen
0.2 mL serum collected in a serum separator tube (SST)
Other Acceptable Specimens
0.2 mL serum collected in a no additive (red-top) tube, transferred to a plastic screw-cap vial 0.2 mL plasma collected in a lithium heparin (green-top) gel separator tube
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 3 days
Refrigerated: 7 days
Frozen: 3 months
Refrigerated: 7 days
Frozen: 3 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed specimen
Methodology
Spectrophotometry
Setup Schedule
Daily
Report Available
Next Day
Available STAT 1/2 Hour
Available STAT 1/2 Hour
Reference Range
Age | AST (U/L) Male |
AST (U/L) Female |
---|---|---|
<3 Years | 20 - 60 | 20 - 60 |
4-6 Years | 15 - 50 | 15 - 50 |
7-9 Years | 15 - 40 | 15 - 40 |
10-15 Years | 15 - 40 | 10 - 30 |
16-19 Years | 15 - 45 | 5 - 30 |
Adult | 5 - 40 | 5 - 40 |
Clinical Significance
AST is present in high activity in heart, skeletal muscle, and liver. Increased serum AST activity commonly follows myocardial infarction, pulmonary emboli, skeletal muscle trauma, alcoholic cirrhosis, viral hepatitis, and drug-induced hepatitis.