Lactate Dehydrogenase (LDH) Isoenzymes Test

What is a Lactate Dehydrogenase (LDH) Isoenzymes Test?

A Lactate Dehydrogenase (LDH) Isoenzymes Test is a test used to measure the amount of LDH activity in a sample. LDH is an enzyme that is found in all living tissues and is an important indicator of tissue damage. The test can be used to detect damage to the liver, heart, blood, and muscles, as well as certain cancers. It can also help determine the cause of anemia and the effectiveness of treatments for certain diseases.

Preparation For LDH Isoenzymes Test

No special preparation is typically necessary for this test. Your doctor will tell you if you need to fast or stop taking any medications before the test.

Procedure of LDH Isoenzymes Test

During the test, a healthcare professional will draw a sample of your blood. The sample is then sent to a lab to be tested. The results of the test will be sent to your doctor.

Types of LDH Isoenzymes Test

LDH-1 - found primarily in the heart and skeletal muscles
LDH-2 - found primarily in the lungs and red blood cells
LDH-3 - found primarily in the liver, kidneys, and pancreatic cells
LDH-5 - found primarily in white blood cells and the spleen

Risks Associated With LDH Isoenzymes Test

Having a blood test carries some risks. There may be some slight discomfort when the needle is inserted into your vein. You may also experience some lightheadedness or faintness after the test is complete. These risks are rare and are usually minor.

Why is a LDH Isoenzymes Test Ordered?

Your doctor may order LDH isoenzymes test if they suspect you have a condition that is affecting your organs. The test is commonly used to check for liver or heart damage, as well as certain types of cancer or anemia. It can also be used to monitor the effectiveness of treatments for these conditions.