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HelpTest Code LAB7 Aspartate Aminotransferase (AST), Plasma or Serum
Additional Codes
| Test Name in EPIC | EPIC Test Code | Mnemonic |
|---|---|---|
| AST | LAB7 | AST |
Methodology
Enzymatic Rate (NADH-without P-5'-P)
Specimen Requirements
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Plasma
Container/Tube: Light-green top (lithium heparin gel)
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions:
1. Hemolyzed specimen is not acceptable.
2. Separate plasma from cells within 2 hours of draw.
3. If plunger filters are used, immediate removal of plasma is indicated unless an air gap can be created between the device and specimen.
Additional Information:
1. Avoid repeated freeze/thaw cycles.
2. Label specimen appropriately (plasma).
Alternate:
Specimen Type: Serum
Container/Tube: Serum gel
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL
Collection Instructions:
1. Hemolyzed specimen is not acceptable.
2. Separate serum from cells within 2 hours of draw.
3. If plunger filters are used, immediate removal of serum is indicated unless an air gap can be created between the device and specimen.
Additional Information:
1. Avoid repeated freeze/thaw cycles.
2. Label specimen appropriately (serum).
Specimen Transport Temperature
Refrigerate 5 days/Ambient 8 hours OK/Frozen OK
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Chemistry -
Central Region: St. Joseph's - Baxter Clinic Lab, St. Joseph's - Brainerd Clinic Lab, St. Joseph's Medical Center Lab
East Region: Ashland Clinic Lab, Deer River Hospital Lab, Ely Clinic Lab, Hayward Clinic Lab, Hibbing Clinic Lab, International Falls Clinic Lab, Northern Pines Lab, Sandstone Hospital Lab, SMDC Clinical Lab, Spooner Clinic Lab, St. Mary's Hospital - Superior Lab, Virginia Hospital Lab
West Region: Ada Hospital Lab, Fargo Hospital Lab, Fosston Hospital Lab, Holy Trinity Hospital Lab, Park Rapids Clinic Lab, South University Clinic Lab, St. Mary's - Detroit Lakes Hospital Lab
Test Classification and CPT Coding
84450
Reference Values
0-14 days: 32-162 IU/L
15 days-1 year: 20-67 IU/L
2-6 years: 21-44 IU/L
7-11 years: 18-36 IU/L
12-18 years: 13-35 IU/L
Adult: 10-40 IU/L