Lactate Dehydrogenase Isoenzyme 3 (LD3) details
What Lactate Dehydrogenase Isoenzyme 3 (LD3) shows
LD isoenzyme 3 is a specific form of lactate dehydrogenase found predominantly in the lungs and several other tissues. It's one of five LD isoenzymes that can be separated out when a more detailed breakdown of an elevated total LDH result is needed, though isoenzyme fractionation is used far less commonly today than in the past, given the availability of more specific, tissue-targeted tests.
Tests that include Lactate Dehydrogenase Isoenzyme 3 (LD3)
This panel measures lactate dehydrogenase isoenzymes. Lactate dehydrogenase (LD) is an enzyme found in almost all of the body's cells; elevated levels of this enzyme can be used as a general marker of cell injury. LD isoenzymes are used to determine the source of elevated LDH activity, as each isoenzyme tends to be concentrated in specific body tissues.
- Lactate Dehydrogenase (LDH) An enzyme found in many tissues, released when cells are damaged. A general marker used alongside other tests to investigate tissue injury, certain cancers, or red blood cell breakdown.
- Lactate Dehydrogenase Isoenzyme 1 (LD1) A specific form of LDH found mainly in heart muscle and red blood cells, historically used to help detect heart or blood-cell damage.
- Lactate Dehydrogenase Isoenzyme 2 (LD2) A specific form of LDH found mainly in the immune system and red blood cells.
- Lactate Dehydrogenase Isoenzyme 3 (LD3) A specific form of LDH found mainly in the lungs and other organs.
- Lactate Dehydrogenase Isoenzyme 4 (LD4) A specific form of LDH found mainly in the kidneys, placenta, and pancreas.
- Lactate Dehydrogenase Isoenzyme 5 (LD5) A specific form of LDH found mainly in the liver and skeletal muscle.
This panel measures lactate dehydrogenase isoenzymes. Lactate dehydrogenase (LD) is an enzyme found in almost all of the body's cells; elevated levels of this enzyme can be used as a general marker of cell injury. LD isoenzymes are used to determine the source of elevated LDH activity, as each isoenzyme tends to be concentrated in specific body tissues.
- Lactate Dehydrogenase (LDH) An enzyme found in many tissues, released when cells are damaged. A general marker used alongside other tests to investigate tissue injury, certain cancers, or red blood cell breakdown.
- Lactate Dehydrogenase Isoenzyme 1 (LD1) A specific form of LDH found mainly in heart muscle and red blood cells, historically used to help detect heart or blood-cell damage.
- Lactate Dehydrogenase Isoenzyme 2 (LD2) A specific form of LDH found mainly in the immune system and red blood cells.
- Lactate Dehydrogenase Isoenzyme 3 (LD3) A specific form of LDH found mainly in the lungs and other organs.
- Lactate Dehydrogenase Isoenzyme 4 (LD4) A specific form of LDH found mainly in the kidneys, placenta, and pancreas.
- Lactate Dehydrogenase Isoenzyme 5 (LD5) A specific form of LDH found mainly in the liver and skeletal muscle.
Not sure how to read your results? We can help.
Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.
Book a specialist