Home About Shands For Healthcare Professionals Newsroom ShandsConnect Index
Search:


Blood test
Blood test


LDH isoenzymes

Alternative Names:
LD; Lactic (lactate) dehydrogenase isoenzymes

What abnormal results mean:

Because LDH can be found in many tissues in the body, total LDH is not specific for heart disease. Normally, the concentration of LDH-2 is greater than LDH-1. However, after a heart attack, the concentration of LDH-1 is generally higher than that of LDH-2. This is called a "flipped" LDH pattern. The LDH level rises within 24 - 72 hours after a heart attack, peaks in 3 - 4 days, and returns to normal in about 14 days.

Greater-than-normal LDH isoenzyme levels may be seen in:




Review Date: 1/24/2005
Reviewed By: Thomas A. Owens, M.D., Departments of Internal Medicine and Pediatrics, Duke University Medical Center, Durham, NC. Review provided by VeriMed Healthcare Network.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. Copyright 2004 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

Illustrated Health Encyclopedia

En Español

Pregnancy Health Center

Shands Careguides

Surgeries and Procedures

Shands HealthCast