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Doctor insights on: Ldh Isoenzymes

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What are ldh isoenzymes?

What are ldh isoenzymes?

Obsolete test: There are five forms of the ldh enzyme. Type i is especially abundant in heart, and if it was higher than type ii, it was a marker for heart attack. If all five were equally high, think infectious mono, type v was marker for skeletal muscle or liver injury, and so forth, type iii for a lung infarct. It was helpful but today's labs are more sensitive and more specific. ...Read more

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Should i be concerned if my blood test ldh is 308(103--227) it is elevated.What does it mean?

Should i be concerned if my blood test ldh is 308(103--227) it is elevated.What does it mean?

Many possibilities: The website given below provides a list of causes of elevated ldh. However, it may be elevated if you exercised before the blood test. All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. http://www.nlm.nih.gov/medlineplus/ency/article/003471.htm. ...Read more

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What are ldh isoenzymes?

Obsolete test: There are five forms of the ldh enzyme. Type i is especially abundant in heart, and if it was higher than type ii, it was a marker for heart attack. If all five were equally high, think infectious mono, type v was marker for skeletal muscle or liver injury, and so forth, type iii for a lung infarct. It was helpful but today's labs are more sensitive and more specific. ...Read more

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LDH Isoenzymes lab test results: LDH total- 153. LD1- 32, LD2-30, LD3, 20, LD4- 8, LD5- 10. Are these results normal? Is the LD1&LD2 ratio abnormal?

LDH Isoenzymes lab test results: 
LDH total- 153. LD1- 32, LD2-30, LD3, 20, LD4- 8, LD5- 10. Are these results normal? Is the LD1&LD2 ratio abnormal?

Historic test: Matthew, the LDH isoenzyme test is ancient history, almost never ordered nowadays. And your LDH is normal. The old 1-2 ratio is an antique screen for a heart attack, and it's neither sensitive nor specific. I know you're obsessing over the idea that you have lymphoma, and a few websites suggest this as a screening test -- but it's not. Focus on building a life for yourself. ...Read more

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In LFT blood test LDH was elevated and ISOENZYMES LDH 3 was elevated. I got the LFT again LDH was again elevated but lower than earlier. ?

In LFT blood test LDH was elevated and ISOENZYMES LDH 3 was elevated. I got the LFT again LDH was again elevated but lower than earlier. ?

See below: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, LDH is not a good marker of liver health or disease. If your GGT and ALT were normal the elevated LDH is not due to liver disease. ...Read more

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Can you tell me in what manner in which the isoenzymes of ldh can be used as diagnostic tools?

Can you tell me in what manner in which the isoenzymes of ldh can be used as diagnostic tools?

In the old days: In the old days, LDH isoenzymes were requested to separate liver and skeletal muscle sources from the heart as the cause of elevation, but those days are gone. Troponin replaced them. ...Read more