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* ALANINE AMINOTRANSFERASE

Mnemonic

SGPT

Synonym

ALT - Glutamate Pyruvate Transaminase - GPT - Alanine Transaminase - SGPT

Specimen Collection Requirements

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (lithium heparin, PST) top tube

View image for Supply Item Number - 101235 or 101192

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Separate serum or plasma from cells before transport. If samples are frozen, they should be thawed only once before testing.

Preferred Volume

1.0 mL Serum/Plasma

Minimum Volume

0.25 mL Plasma/Serum (0.60 mL minimum whole blood draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient (18-26°C): 3 days; Refrigerated (2-8°C): 7 days; Frozen (≤ -20°C): 7 days

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Enzymatic

Reference Values

Reference Values

Comments

Patients treated with Sulfasalazine may generate false low results for ALT.

CPT Codes

84460

Last Updated: Thursday, January 5, 2017 03:40:29 AM


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