LDH Isoenzymes
Alternate Names : Lactic (Lactate) Dehydrogenase Isoenzymes, LD
Definition This is a test that measures the amount of the isoenzymes (different forms) of lactate dehydrogenase (LDH) in blood serum.
Pictures & Images
 See all Pictures & Images
Why is the Test Performed?
This test is usually performed when elevated LDH levels are suspected. Measurement of LDH isoenzymes helps determine the location of tissue damage.
The enzyme LDH is found in many body tissues like the heart, liver, kidney, skeletal muscle, brain, blood cells, and lungs. LDH is very important for metabolism.
LDH exists in 5 forms (isoenzymes), which differ slightly in structure. LDH-1 is found primarily in heart muscle and red blood cells. LDH-2 is concentrated in white blood cells. LDH-3 is highest in the lung. LDH-4 is highest in the kidney, placenta, and pancreas. LDH-5 is highest in the liver and skeletal muscle. All of these isoenzymes can be measured in the blood.
Today's Top News Stories | • | Clinical Trials Update: Aug. 20, 2008 - Aug 20, 2008, 11:27
- Multiple Sclerosis
- Psoriasis
- Rhinitis, Allergic, Perennial
| • | 79 Million Americans Struggle to Pay Medical Bills - Aug 20, 2008, 09:00
New numbers show the problem is getting worse, not better, even for middle class. | • | Compression Stockings Often Incorrectly Used - Aug 20, 2008, 09:00
29% of patients had problems with size of devices used to prevent deep vein clots, study finds. | • | Calcium Might Have Taste Humans Can Detect - Aug 20, 2008, 12:00
Tweaking tongue receptors could encourage people to consume more of the vital nutrient. | • | Addiction Drug Causes Rapid Weight Loss in Rats - Aug 20, 2008, 12:00
Findings offers hope of new treatments for severe obesity in humans. |
|
