Lactate Dehydrogenase (LDH)
The Lactate Dehydrogenase (LDH) test measures the level of lactate dehydrogenase, an enzyme found in many tissues throughout the body, including the heart, liver, kidneys, and muscles. Clinicians often order this test to help diagnose conditions related to tissue damage, such as heart attacks, liver disease, or certain types of cancer. The Lactate Dehydrogenase (LDH) test can also be used to monitor the progression of these diseases or to assess a patient’s response to treatment. Elevated levels may indicate tissue injury, while low levels are generally not of concern. Understanding the results of the Lactate Dehydrogenase (LDH) test can provide valuable insights into a patient's health status.
Test Essentials
Specimen Required
2 mL blood (light green). Pediatrics: 0.5 mL.
Test Category
Chemistry
Turnaround Time
Results for the Lactate Dehydrogenase (LDH) test are usually available within 24–48 hours after sample collection.
Clinical Information
Clinical Significance
Abnormal results from the Lactate Dehydrogenase (LDH) test can indicate various health issues. High levels may suggest tissue damage from conditions such as heart attack, liver disease, or infections. Conversely, low levels are typically not a cause for concern. The diagnostic value of the Lactate Dehydrogenase (LDH) test lies in its ability to provide insight into potential underlying health issues. However, only a healthcare provider can interpret the results accurately in the context of your individual health situation.
Reference Ranges
Reference ranges for the Lactate Dehydrogenase (LDH) test can vary based on several factors, including age, sex, and the specific laboratory methods used. Generally, a healthcare provider will interpret the results in the context of your overall health. It’s important to note that what is considered normal can differ from one laboratory to another, so always consult with your healthcare provider for the most accurate interpretation.
Sample Preparation
Before your Lactate Dehydrogenase (LDH) test, there are typically no special preparations required. You can eat and drink normally unless instructed otherwise by your healthcare provider. However, if you are taking any medications, it’s advisable to inform your doctor, as some medications may affect your results. Always follow any specific instructions provided by your healthcare provider to ensure accurate results.
Related Tests
Code: 0212
Code: 0230
Code: P0204
Frequently Asked Questions
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