Lactic Acid Dehydrogenase: About Your Child's Test

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What is it?

This is a blood test that measures the amount of the LDH (lactic acid dehydrogenase) in your child's blood. LDH is an enzyme. LDH levels go up when there is damage to your child's cells.

Why is this test done?

LDH levels help find the cause of lung disease, lymphoma, anemia, and liver disease. They also help find out how well treatment for lymphoma is working.

How do you prepare for the test?

In general, you don't need to prepare before your child has this test. Your doctor may give you some specific instructions.

How is the test done?

A health professional uses a needle to take a blood sample, usually from the arm.

How long does the test take?

The test will take a few minutes.

Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and call your doctor if your child is having problems. Ask your doctor when you can expect to have your child's test results.

Where can you learn more?

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The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.