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 its levels rise 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 140 units per
liter (U/L) to 280 U/L or 2.34 microkatals/L to 4.68 microkatals/L.
What To Think About
Many diseases can cause increases
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
ByHealthwise Staff
Primary Medical ReviewerAnne C. Poinier, MD - Internal Medicine
Adam Husney, MD - Family Medicine
E. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerMartin J. Gabica, MD - Family Medicine
Current as ofJune 6, 2017