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AST(SGOT)
MessageCHEMISTRY
Test Code
AST
Alias/See Also
GOT, ASPARTATE AMINO TRANSFERASE, GLUTAMATE OXALACETATE, SGOT
CPT Codes
84450
Includes
INCLUDED IN A LIVER PROFILE
Preferred Specimen
PLASMA
Minimum Volume
1mL
Other Acceptable Specimens
SERUM- GOLD TOP SST TUBE
Instructions
DRAW 1 LI HEP TUBE(LIGHT GREEN TUBE), SPIN DOWN
Transport Container
ORIGINAL TUBE
Transport Temperature
REFRIGERATED
Specimen Stability
Room temperature: 4 days
Refrigerated (2-8°C): 7 days
Frozen (-20°C or colder): 12 weeks
Refrigerated (2-8°C): 7 days
Frozen (-20°C or colder): 12 weeks
Methodology
UV without P5P
Setup Schedule
DAILY
Report Available
DAILY
Reference Range
NORMAL RANGE CHANGE FROM SERUM AND PLASMA FROM 10-45 TO 5-34 U/L. PLASMA- REF. HIGH: 34 REF. LOW: 5 SERUM- REF. HIGH: 34 REF. LOW: 5
Clinical Significance
AST is widely distributed throughout the tissues with significant amounts being in the heart and liver. Lesser amounts are found in skeletal muscles, kidneys, pancreas, spleen, lungs, and brain. Injury to these tissues results in the release of the AST enzyme to general circulation. In myocardial infarction, serum AST may begin to rise within 6-8 hours after onset, peak within two days and return to normal by the fourth or fifth day post infarction. An increase in serum AST is also found with hepatitis, liver necrosis, cirrhosis, and liver metastasis.
Performing Laboratory
WHITE RIVER JUNCTION VA MEDICAL CENTER- CHEMISTRY 802-295-9363 EXT: 5518, 5519
