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Test Code N.AST AST/SGOT

Important Note

Hemolyzed specimen not acceptable. 

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Specimen Type: Serum or Plasma 
Container/Tube: SST or Lithium Heparin 

Acceptable: Red top 
Specimen Volume: 1 mL (minimum 0.5) 
Collection Instructions:  

  1. Allow specimen to clot completely if a serum tube (SST) was used. 
  2. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube. 
  3. Properly label tube with patient's name, DOB, requisition number and type of tube, i.e. LiHep or NaHep etc. 

Specimen Rejection

1. Hemolysis

2. Exceeds stability requirements

3. Unlabeled/mislabeled specimen

Maximum Laboratory Time

24 to 48 hours

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 6 days poured off

Test Classification and CPT Coding

84450

Reference Ranges

AST ( SGOT)          IU/L
Newborn    35 - 140
5 days    20 - 60
4 yrs    15 - 50
7 yrs    15 - 40
10 yrs  F    10 - 40
            M    10 - 60
15 yrs      5 - 34

 

Day(s) Test Set Up

Daily