Lactate dehydrogenase, or LDH, is an enzyme found in various tissues throughout the body, including the heart, liver, kidneys, skeletal muscles, and blood cells. It is involved in energy production, helping to convert lactate into pyruvate. When cells are damaged or destroyed, LDH is released into the body fluids. As such, measuring LDH levels in different body fluids, such as pleural fluid, peritoneal fluid, or cerebrospinal fluid, can be valuable in diagnosing and monitoring certain medical conditions.
For instance, high levels of LDH in pleural fluid (fluid from the lungs) could indicate pleuritis, pneumonia, or lung cancer. Similarly, elevated levels in peritoneal fluid (abdominal fluid) could suggest peritonitis, and increased LDH in cerebrospinal fluid could be indicative of meningitis or other central nervous system disorders.
Test NameLDH (Lactate Dehydrogenase) - Body Fluids
Sample TypeBody fluids
Preparations RequiredNNo specific preparation is needed for the test.
Report Time4 Hours
What is the significance of measuring LDH levels in body fluids?
Measuring LDH levels in body fluids can help diagnose and monitor certain diseases and conditions, especially those involving cell damage or death. For instance, it can help diagnose conditions like pleuritis, peritonitis, meningitis, or tumors.
How is the test for LDH in body fluids performed?
The test involves taking a sample of body fluid, which can be drawn through various methods depending on the type of fluid. For example, cerebrospinal fluid is obtained via a lumbar puncture, while pleural fluid is obtained through a procedure called thoracentesis.
Home Sample Collection Process
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Book your convenient slot
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Sample Collection by Phlebotomist
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Reporting of the sample at lab
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Frequently Asked Questions
A doctor may order this test if there is a suspicion of diseases that cause cell damage in certain areas of the body or if there is unexplained fluid accumulation in areas such as the lungs, abdomen, or around the brain.
Elevated levels of LDH in body fluids generally indicate cell damage or death. Depending on the fluid type, it can suggest different conditions such as infections, inflammation, or malignancy.
No special preparation is needed for the LDH test in body fluids. However, depending on the type of body fluid being tested, there may be specific instructions related to the procedure used to collect the fluid sample.
Yes, LDH levels can vary depending on the type of body fluid being tested. For instance, LDH levels in cerebrospinal fluid are usually lower than in blood serum.
Normal values for LDH in body fluids vary depending on the type of fluid and the laboratory that analyzes the samples. Your doctor will interpret the results based on lab-specific reference ranges.
There are risks associated with the collection of body fluids, especially if it involves invasive procedures like lumbar puncture or thoracentesis. These risks can include infection, bleeding, and discomfort.
Certain medications can affect LDH levels. It's important to tell your doctor about any medications you are taking as they may influence the interpretation of the test results.
Treatment is not aimed at lowering LDH levels per se, but rather at addressing the underlying condition causing the elevated levels.
Yes, measuring LDH levels in body fluids can sometimes be used to monitor the effectiveness of treatment for certain diseases.
Factors that can affect LDH levels in body fluids include the presence of diseases or conditions that cause cell damage, medications, and the method of sample collection.
If you have abnormal LDH levels in body fluids, it's important to consult with your doctor, who may refer you to a specialist depending on the underlying cause.
Physical activity generally does not affect LDH levels in body fluids such as pleural fluid or cerebrospinal fluid.
No, the LDH test is usually used in conjunction with other tests and clinical information to diagnose specific diseases.
By understanding the importance of measuring LDH levels in body fluids, patients can be better informed about their health. The LDH test in body fluids is a valuable tool that aids in the diagnosis and monitoring of various medical conditions. It’s important to follow your doctor’s advice and understand that the LDH test is usually one part of a comprehensive diagnostic process.
