Lactic acid dehydrogenase (LDH)
Content provided by Healthwise
Exam Overview
Lactic acid dehydrogenase (LDH) is an enzyme that helps produce energy. It is present in almost all of the tissues in the body and becomes elevated in response to cell damage. LDH levels are measured from a sample of blood taken from a vein.
Why It Is Done
LDH levels help diagnose lung disease, lymphoma, anemia, and liver disease. They also help determine how well chemotherapy is working during treatment for lymphoma.
Results
Lactic acid dehydrogenase (LDH) is an enzyme that helps produce energy. Results may vary widely from lab to lab.
Normal LDH levels range from 100 units per liter (U/L) to 190 U/L.
What To Think About
Many diseases can cause elevations in LDH levels. Other tests are usually needed to confirm a diagnosis.
Complete the medical test information form (PDF) (What is a PDF document?) to help you prepare for this test.
Credits
| Author | Bets Davis, MFA |
| Editor | Maria Essig |
| Editor | Susan Van Houten, RN, BSN, MBA |
| Associate Editor | Pat Truman, MATC |
| Primary Medical Reviewer | Anne C. Poinier, MD - Internal Medicine |
| Specialist Medical Reviewer | Douglas A. Stewart, MD - Medical Oncology |
| Last Updated | April 22, 2008 |
| Last updated: | April 22, 2008 |
|---|---|
| Author: | Bets Davis, MFA |
| Reviewed By: | Anne C. Poinier, MD - Internal Medicine, Douglas A. Stewart, MD - Medical Oncology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC |
© 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.
Search
Related Articles
Where Does it Hurt?
If you're experiencing aches and pains we can help you find answers. Find out what your symptoms mean for your health.
