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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
| Minnesota | North Dakota | Wisconsin |
| Ada Hospital Lab | Fargo Hospital Lab | Ashland Clinic Lab |
| Deer River Hospital Lab | Mid Dakota Bismarck 9th Street | Hayward Clinic Lab |
| Ely Clinic Lab | South University Clinic Lab | Spooner Clinic Lab |
| Fosston Hospital Lab | St. Mary's Hospital-Superior | |
| Hibbing Clinic Lab | ||
| Holy Trinity Hospital Lab | ||
| International Falls Clinic Lab | ||
| Moose Lake Hospital Lab | ||
| Northern Pines Lab | ||
| Park Rapids Clinic Lab | ||
| Sandstone Hospital Lab | ||
| SMDC Clinical Lab | ||
| St. Joseph's - Baxter Clinic Lab | ||
| St. Joseph's - Brainerd Clinic Lab | ||
| St. Joseph's Medical Center Lab | ||
| St. Mary's - Detroit Lakes Hospital | ||
| Virginia 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 male: 16-40 IU/L
Adult female: 11-38 IU/L