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ALT
Test CodeALT
Alias/See Also
GPT/ SGPT
CPT Codes
84460
Preferred Specimen
0.8 mL of whole blood ( 0.4 mL of serum or plasma)
Minimum Volume
0.4ml of whole blood (0.2 mL of serum/plasma)
Instructions
Serum must be separated from the cells within 4 hours
Transport Container
Serum separator (gold top) or for inpatients/MSTI/ED only lithium heparin (green or mint top)
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature: 3 days
Refrigerated: 7 days
Frozen: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Frozen
Methodology
Multiple Point Rate
Setup Schedule
Daily
Report Available
Inpatient turn around time: Routine 3 hours, stat 30 minutes. Outpatient testing received by noon will be reported by 4:30 p.m. Specimens received after noon will be reported by the next morning.
