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AST
Access Labcorp Draw · Quest Diagnostics2 test optionsFrom $8.40
AST
Access Labcorp Draw · Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Aspartate Aminotransferase (AST) Test
This test measures the level of AST enzyme in the blood, which is found in high amounts in the heart and liver, and to a lesser extent in muscles and other organs. Damage to these organs can release AST into the bloodstream. It's particularly useful for detecting heart damage (like after a heart attack) and liver diseases such as hepatitis, liver necrosis, cirrhosis, and liver cancer.
What patients is this test right for?This test might be recommended if someone shows symptoms of heart or liver issues, including: • Pain in the chest
• Jaundice (yellowing of the skin and eyes)
• Severe fatigue
• Swelling in the legs and abdomen
• Nausea
What type of sample is required for this test?1 mL serum.
Test ResourcesResources are not provided for this test.
Additional test information
Aspartate Aminotransferase (AST) Test – This test measures the level of AST enzyme in the blood, which is found in high amounts in the heart and liver, and to a lesser extent in muscles and other organs. Damage to these organs can release AST into the bloodstream. It's particularly useful for detecting heart damage (like after a heart attack) and liver diseases such as hepatitis, liver necrosis, cirrhosis, and liver cancer.
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Aspartate Aminotransferase (AST) Test
This test measures the level of AST enzyme in the blood, which is found in high amounts in the heart and liver, and to a lesser extent in muscles and other organs. Damage to these organs can release AST into the bloodstream. It's particularly useful for detecting heart damage (like after a heart attack) and liver diseases such as hepatitis, liver necrosis, cirrhosis, and liver cancer.
What patients is this test right for?This test might be recommended if someone shows symptoms of heart or liver issues, including: • Pain in the chest
• Jaundice (yellowing of the skin and eyes)
• Severe fatigue
• Swelling in the legs and abdomen
• Nausea
What type of sample is required for this test?1 mL serum.
Test ResourcesResources are not provided for this test.
Additional details
Aspartate Aminotransferase (AST) Test - This test measures the level of AST enzyme in the blood, which is found in high amounts in the heart and liver, and to a lesser extent in muscles and other organs. Damage to these organs can release AST into the bloodstream. It's particularly useful for detecting heart damage (like after a heart attack) and liver diseases such as hepatitis, liver necrosis, cirrhosis, and liver cancer.
Highlighted health areas
- Liver/Gallbladder
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Aspartate Aminotransferase (AST)