Aspartate Aminotransferase (AST/SGOT)
AST is an enzyme found in the liver, heart, and muscles. Elevated levels may signal liver disease, heart problems, or muscle injury. It is often tested alongside ALT for a more complete liver assessment.
12 hours
Turnaround
Blood
Sample
What the Aspartate Aminotransferase (AST/SGOT) test tells you
Aspartate aminotransferase, historically abbreviated SGOT, is an enzyme involved in amino acid metabolism. Unlike its partner ALT, it is not concentrated in the liver alone: substantial amounts sit in heart muscle, skeletal muscle, the kidneys and red blood cells. Any of those tissues can release it when damaged, which makes AST a broader signal of cell injury and a less liver-specific one.
That breadth is exactly why AST is measured together with ALT rather than instead of it. Comparing the two lets your doctor infer where the enzyme is likely coming from and, within liver disease, which process is more probable. Alcohol-related liver injury tends to push AST proportionally higher than ALT, while metabolic fatty liver more often shows the reverse pattern, and advancing fibrosis can shift the balance again. None of this is diagnostic on its own — it is a clue that shapes what your doctor investigates next.
Outside the liver, AST frequently rises for reasons that have nothing to do with it. Intense or unaccustomed exercise, particularly heavy resistance training, releases enzyme from skeletal muscle for several days. So does muscle injury, an intramuscular injection, a seizure, or a muscle-related side effect of some cholesterol medicines. Even the blood sample itself can be responsible: if red cells break during a difficult draw, AST leaks out of them and the reported value rises without anything being wrong with you. Your doctor weighs all of this before deciding whether a raised AST needs pursuing.
Part of standard liver function panels. Also useful for evaluating myocardial injury, rhabdomyolysis, or haemolytic anaemia.
AST measured next to ALT gives your doctor a pattern to read rather than a single figure, which narrows the likely cause of liver enzyme elevation.
Because skeletal and cardiac muscle contain AST, the test can reveal muscle injury that would otherwise be missed on a routine screen.
In established liver conditions, tracking AST over time helps show whether the process is settling, stable or progressing.
Some medicines affect the liver, muscle or both, and AST is part of the routine safety monitoring used while taking them.
Reasons your doctor may request the Aspartate Aminotransferase (AST/SGOT) test
Your doctor may order this test for any of the reasons below. Some are routine checks, others follow specific symptoms or an earlier result.
Routine liver screening
Routine liver function screening or a general health check.
Liver & muscle symptoms
Fatigue, nausea, poor appetite or discomfort under the right ribs.
Yellowing of the eyes or skin, or unusually dark urine.
Muscle pain or weakness, particularly while taking cholesterol-lowering medication.
Known liver disease & medication
Known liver disease, regular alcohol use, or a positive hepatitis result being followed up.
Monitoring during treatment with a medicine known to affect the liver.
No fasting window — pick any slot that suits you, online or on WhatsApp.
A DHA-licensed nurse collects your sample at home or in the office — free home collection.
A physician-reviewed, easy-to-read report lands securely by WhatsApp and email.
What a higher result can point to
- Liver conditions including fatty liver disease, viral hepatitis and drug-related liver injury.
- Alcohol, which characteristically raises AST more than ALT.
- Skeletal muscle injury, strenuous or unaccustomed exercise, or an intramuscular injection.
- Heart muscle damage, which releases AST along with more specific cardiac markers.
- Breakdown of red blood cells, whether inside the body or within the sample tube after a difficult draw.
- Thyroid disease and coeliac disease, both of which can raise transaminases without liver symptoms.
These are possibilities, not diagnoses. A single value outside the reference range is interpreted alongside your symptoms, history and other tests — your doctor decides what it means for you.
What this test cannot tell you
- AST is present in several tissues, so a raised result does not confirm that the liver is the source.
- A difficult blood draw that damages red cells can raise the reported value artificially.
- Normal AST does not exclude significant liver disease, since advanced scarring often runs with unremarkable enzymes.
- Recent exercise is a frequent and easily overlooked reason for an elevation in an otherwise healthy person.
Risks of the blood draw
- Mild bruising or brief soreness where the needle went in.
- Occasional lightheadedness, which settles after a few minutes of rest.
- Bleeding or infection at the site, which is rare with sterile single-use equipment.
- 1AST is found in liver, heart, skeletal muscle, kidney and red blood cells.
- 2It is almost always interpreted alongside ALT rather than on its own.
- 3The relationship between AST and ALT offers a clue to the underlying cause.
- 4Exercise, muscle injury and haemolysis of the sample are common non-liver explanations.
- 5A low result has no established clinical significance.
Frequently Asked Questions
Everything you need to know about the Aspartate Aminotransferase (AST/SGOT) test. Can't find what you're looking for?
Talk to our team→Skeletal muscle contains a large amount of this enzyme, and intense or unaccustomed exercise causes microscopic muscle damage that releases it into the blood. The rise can last several days, which is why avoiding heavy training before the test is worth doing.
The balance between them hints at where the enzyme is coming from and which liver process is most likely. Alcohol-related injury tends to shift the balance one way and metabolic fatty liver the other. It is a directional clue rather than a diagnosis.
Yes. Red blood cells contain AST, so if some of them break during collection the enzyme is released into the sample and the reported level rises. Laboratories flag samples where this has happened, and a repeat draw usually resolves the question.
Not necessarily. Enzyme levels reflect ongoing cell injury, so they can be entirely ordinary in stable or advanced liver disease where fewer cells remain to leak. Your doctor may use imaging or fibrosis assessment where the clinical suspicion is real.
AST is an enzyme found in the liver, heart, and muscles. Elevated levels may signal liver disease, heart problems, or muscle injury. It is often tested alongside ALT for a more complete liver assessment.
Part of standard liver function panels. Also useful for evaluating myocardial injury, rhabdomyolysis, or haemolytic anaemia.
No, fasting is not required for the Liver Enzyme (AST / SGOT) test, so you can eat and drink normally beforehand.
The Liver Enzyme (AST / SGOT) test uses a blood sample, collected quickly by our DHA-licensed phlebotomist with minimal discomfort.
Results for the Liver Enzyme (AST / SGOT) test are typically ready within 12 hours. You will receive a secure digital report, and your Smart Report highlights anything outside the normal range.
The Liver Enzyme (AST / SGOT) test is AED 120, which includes free home sample collection and a physician-reviewed report. You can also build a custom panel and pay only for the markers you choose.
Yes. A DHA-licensed phlebotomist can collect your sample at home or the office anywhere in Dubai at no extra cost, 7 days a week. See how it works.
It is commonly chosen by adults & teens. If you are not sure it is right for you, our care team is happy to advise.
Add the Liver Enzyme (AST / SGOT) test to your cart and complete the short booking wizard, choosing home collection or a lab visit. Guest checkout lets you book without creating an account.
Yes. It is processed at our EIAC-accredited laboratory (ISO 15189:2022) under DHA license 0046381 and verified by board-certified pathologists.
Every report includes reference ranges and plain-language notes. If you have questions, our care team can arrange a clinician review — just get in touch.
Absolutely. Add it to a curated health package or bundle it with any of our 160+ biomarkers, often from a single sample in one visit.