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Test Code LAB131 Aspartate Aminotransferase (AST), Plasma or Serum

Reporting Title

AST

Methodology

Roche Diagnostics: RMH, BH, DH, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC, HMH, SH

AST is present in numerous tissues. Elevated levels are mostly associated with myocardial infarction, hepatic disease, muscular dystrophy, and organ disease.

 

VWH Lab Only:

AST reagent, when used in conjunction with SYNCHRON LX® System(s), UniCel® DxC 860i System(s), is intended for the quantitative determination of Aspartate Aminotransferase activity in human serum or plasma.

Performing Laboratory

OhioHealth Laboratory Services - RMH, BH, DH, DMH, GCMH, GMC, GMH, HMH, MGH, MH, OBH, PMH, SH, WECC and VWH Core Laboratories

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). (Hemolyzed specimen is not acceptable.) Spin down and send 1 mL of serum refrigerated.
Note:

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).

 

Alternate (Preferred for VWH Lab): 

Plasma

Draw blood in a mint green-top (heparin) gel tube(s). (Hemolyzed specimen is not acceptable.) Spin down and send 1 mL of heparinized plasma refrigerated.

Note: 

1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

VWH Lab: 

3. Tubes of blood are to be kept closed at all times and in a vertical position. It is recommended that the serum or plasma be physically separated from contact with cells within two hours from the time of collection.

4. Separated serum or plasma should not remain at room temperature longer than 8 hours. If assays are not completed within 8 hours, serum or plasma should be stored at +2°C to +8°C for up to 48 hrs. 

 

Roche Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 7 days
  Ambient  3 day
  Frozen  1 month

 

Specimen Transport Temperature

Refrigerate:OK

Ambient: OK

Frozen: OK

Reference Values

Males: 0-50 U/L

Females: 0-35 U/L

 

VWH Lab Only: 

10 – 42 IU/L

Day(s) Test Set Up

Monday through Sunday- Continuously

Test Classification and CPT Coding

84450