LACTATE DEHYDROGENASE; LDH

What this test checks

Measures LDH, an enzyme that leaks out of cells when they are damaged. Used to monitor a wide range of conditions — anemia, infections, certain cancers, and muscle injury.

Why do people get this test?

Helpful when doctors are tracking the progress of certain blood disorders or cancers.

When you should consider this test

• Follow-up of certain anemias
• Monitoring some cancers
• Investigating unexplained tissue damage

How to prepare

No fasting needed.