The short answer
The most specific liver enzyme — elevated ALT is a strong indicator of liver cell damage, measured from a standard blood draw. At TestWell it costs $18.99 plus a $6 lab fee, needs no fasting, and results post in 1–3 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp.
Hospital Lab
$60
cash pay
Other Labs
$20
+ lab fees
TestWell
$18.99
+ $6 lab fee
ALT is an enzyme found primarily in the liver. When liver cells are damaged or inflamed, ALT leaks into the bloodstream, causing levels to rise. It's considered the most specific single marker for liver damage. Elevated ALT can indicate hepatitis, fatty liver disease, medication toxicity, or alcohol-related liver damage.
Alanine Aminotransferase — the most liver-specific enzyme. Elevated ALT signals hepatocellular injury from fatty liver, alcohol, viral hepatitis, or medications. The most sensitive single marker of liver inflammation.
Anyone monitoring liver health (statins, acetaminophen, alcohol intake), suspected fatty liver disease, post-Hep B/C exposure, anyone with right-upper-quadrant pain or jaundice, monitoring TRT or anabolic steroids.
Sample Type
Blood draw
Fasting
Not required
Results In
1–3 business days
Performed At
Quest or Labcorp
Your ALT (Alanine Aminotransferase) results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 1–3 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting required. Avoid alcohol and strenuous exercise for 24 hours before.
A ALT (Alanine Aminotransferase) test costs $18.99 at TestWell — $24.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $60.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $18.99 | $24.99 | Includes the one $6 lab processing fee, charged once per order |
| Hospital outpatient lab, self-pay (typical) | $60.00 | $60.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 823 · Labcorp test no. 001545. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$18.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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ALT (Alanine Aminotransferase)
$18.99