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Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog
AST |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1792 Geisinger Epic ID: 14437 | |
SPECIMEN COLLECTION |
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Specimen type: |
Plasma or Serum | |
Preferred collection container: |
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Specimen required: |
2 mL of serum or plasma; minimum 0.2 mL. | |
| SPECIMEN PROCESSING |
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Specimen processing instructions: |
Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection. | |
Transport temperature: |
Refrigerated (preferred). Room temperature specimen also acceptable. | |
Specimen stability: |
Plasma (PST): Room temperature or refrigerated: 12 hours. Serum (SST): Room temperature: 4 days. Refrigerated: 7 days. Frozen: 3 months. |
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Rejection criteria: |
Stability limits exceeded, | |
TEST DETAILS |
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Reference interval: |
0-10 days: 47-150 U/L 11 days - < 4 yr: <77 U/L 4 yr - < 7 yr: <53 U/L 7 yr - < 13 yr: <48 U/L 13 yr to <18 yr: <44 U/L > 18 yr: Male 10-50 U/L. Female 10-35 U/L |
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CPT code(s): |
84450 | |
| Note: The billing party has sole responsibility for CPT coding. Any questions regarding coding should be directed to the payer being billed. The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only. | ||
Test includes: |
Aspartate aminotransferase (AST). | |
Methodology: |
Enzymatic |
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Synonyms: |
SGOT
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Clinical significance: |
Elevated in alcoholism, cirrhosis, hepatitis, drug therapy, and biliary disease. Depressed in uremia, B6 deficiency, and drug therapy. | |
Doctoral Director(s:) |
Hoi-Ying Elsie Yu, PhD, DABCC Sheng-Ying (Margaret) Lo, PhD, DABCC |
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| Review Date: | 12/14/2022 | |
Performing Locations
Geisinger Wyoming Valley Medical Center
Geisinger Shamokin Area Community Hospital
Geisinger Community Medical Center
Geisinger Medical Center Muncy