COVID-19 Information: Keeping you safe is our top priority.Learn more about what to expect when you visit any LMH Health location.
View All Services
Find a New Primary Care Provider
Search by Specialty
View All Locations
Discover classes, events, tours, and groups that fit your interests.
Home > Be Healthy > Health Library > Lactate dehydrogenase (LDH)
Lactate dehydrogenase (LDH) is a protein (enzyme) that speeds up chemical reactions in the body. It is found in red blood cells and in many organs, including the heart, liver, muscles, lungs, brain, and kidneys.
There are five different fractions of LDH (called isoenzymes): LDH-1, LDH-2, LDH-3, LDH-4, and LDH-5.
A blood test to measure LDH levels is done to check for damage to organs throughout the body. The amounts of each isoenzyme also may be measured to help determine what organ may be damaged. Some conditions that increase LDH levels include stroke, heart attack, anemia, and hepatitis.
Current as of: December 9, 2019
Author: Healthwise Staff
Medical Review:E. Gregory Thompson MD - Internal Medicine & Adam Husney MD - Family Medicine & Martin J. Gabica MD - Family Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2020 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.