Alanine Aminotransferase (ALT) Blood Test

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Feature	Labcorp	Quest Diagnostics
Price	$5.99	$4.99
Results in	~2 business days	~3 business days
Sample type	Blood Serum	Blood Serum
Require fasting	No	No

About the test

ALT (Alanine Aminotransferase) is an enzyme primarily found in the liver that plays a key role in amino acid metabolism. It is released into the bloodstream when liver cells are damaged.

Included biomarkers & Reference ranges

Biomarker	Reference range
Alanine Aminotransferase (ALT) A liver enzyme released into the blood when liver cells are damaged. One of the main markers used to screen for liver inflammation or injury.	6–29 IU/L

Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.

Preparation

Labcorp lists no special preparation for this test.

Patients treated with sulfasalazine may generate false low results for ALT. Please consult your healthcare provider before collecting your sample.

How it works

1. Order online No referral or insurance
2. Get a requisition By email in 24–72 hours
3. Visit a draw center Bring a matching photo ID
4. Get results Securely by email

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Consultations

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