Lactate Dehydrogenase— Normal Range & What Your Result Means

Normal Lactate Dehydrogenase range (LDH, U/L)

  • Adults140–280 U/L

Ranges are typical adult values and vary between labs. Use the range on your own report.

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What is Lactate Dehydrogenase (LDH)?

Lactate Dehydrogenase is measured as part of a liver function panel. Your LDH is normal. LDH is a general marker released when tissues are stressed or damaged.

What does a high Lactate Dehydrogenase mean?

Your LDH is elevated. This is non-specific — it can rise with many conditions including infections, anemia, muscle injury, or inflammation. Your doctor will interpret it in context.

If markedly elevated: Your LDH is markedly elevated and should be evaluated promptly in the context of your other results.

Understand your whole report, not just one number

A single value rarely tells the full story — Lactate Dehydrogenase is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.

Lactate Dehydrogenase: frequently asked questions

What is a normal Lactate Dehydrogenase level?

A normal Lactate Dehydrogenase (LDH) level is 140–280 U/L for adults. Reference ranges vary slightly between laboratories, so always compare against the range printed on your own report.

What does a high Lactate Dehydrogenase mean?

Your LDH is elevated. This is non-specific — it can rise with many conditions including infections, anemia, muscle injury, or inflammation. Your doctor will interpret it in context.

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