MICHIGAN INNOVATIVE DIAGNOSTICS

Liver enzyme used to detect hepatocellular injury.

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LIS TEST CODE: ALT

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CPT CODE: 84460

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ALIASES: ALT, GPT, SGPT

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METHODOLOGY: NADH (without P-5'-P)

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SPECIMEN:

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- Type: Serum

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- Container: Gold Top (SST) Vacutainer

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- Minimum Volume Required: 1 mL

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- Storage/Handling: Allow 30 minutes for blood to clot, then centrifuge specimen at 3500 RPM for 10 minutes. Maintain specimen at either room temperature, in the refrigerator, or in the freezer until testing can be performed.

 

NOTE: If freezing is required to preserve stability, transfer serum into a separate plastic screw-cap transport container.

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- Stability:     Room Temperature (20-25 °C): 3 days         

 

Refrigerated (2-8 °C): 7 days

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                        Frozen (-20 °C or colder): 2 months; avoid multiple freeze/thaw cycles.

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- Turnaround Time: 24 hours from receipt.

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Special Instructions: N/A

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REJECTION REASONS: QNS, Gross Hemolysis, Gross Lipemia, Contamination, Stability Violation, Expired Container, Incorrect Container

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REFERENCE RANGES:​

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Males (U/L)

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>= 1 year of age: 7 - 55

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Females (U/L)

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>= 1 year of age: 7 - 45

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