hamburger
×
Digit General Insurance Logo
Powered By Digit
mobile-img

Get your ABHA Card Online

Create and Download Instantly

desktop-img

Lactate Dehydrogenase (LDH) Test – Purpose & Risks Explained

What Is a Lactate Dehydrogenase (LDH) Test?

What Is the Purpose of Performing the LDH Test?

When Should I Get the LDH Test?

What Are the Types of LDH Isoenzymes?

What Is the Procedure of the LDH Test?

How Should You Prepare for the LDH Test?

How is LDH Measured in Blood Tests?

How to Read Results of LDH in a Blood Test?

Normal Range of LDH in a Blood Test

 

The normal range of the LDH test usually differs on an individual level, depending on age and other health conditions. Usually, infants and young children have higher LDH levels than adults. So if you get the following Lactate Dehydrogenase levels in your test, it means your health condition is fine.

Age Group

Normal LDH Level (In Units Per Litre)

0 - 10 days

290 - 2000 U/L

10 days - 2 years

180 - 430 U/L

2 - 12 years

110 - 295 U/L

More than 12 years

100 - 190 U/L

What Are the Risks of High LDH Level?

Symptoms of High LDH

Tissue damage, heart diseases, liver diseases, and certain types of cancers are the major reasons for high levels of LDH. Please review the chart below to see the symptoms that arise due to high levels of LDH. The following are possible symptoms when a person has elevated LDH:

Symptoms Description
Fatigue This may occur due to tissue damage, which causes the body’s energy resources to be directed towards repair processes.
Shortness of Breath The main cause of breathing difficulties or shortness of breath is tissue scarring on the lungs and heart.
Chest Pain When damage or disease in your heart causes low blood flow through your arteries and veins, it results in chest pain and discomfort.
Muscle Weakness Sustained muscle tissue breakdown or injury can lead to weakness or reduced muscle strength, which raises LDH levels.
Abdominal Pain High concentrations of LDH indicate an organ dysfunction, such as liver problems that manifest themselves through abdominal pain.
Swelling When organ tissues become damaged, abnormal fluid accumulates in various parts, such as the legs and belly.

What If LDH in the Blood is High?

What Are the Causes of High LDH Levels?

Now that you know what the LDH test is, you must be curious about the causes of high LDH. Usually, high LDH levels in your blood can harm your health. Doctors are likely to recommend various treatment procedures in such conditions. Now, the question that arises here is, “what are the causes of high LDH levels?”. Different health conditions can trigger the growth of Lactate Dehydrogenase enzymes in the blood, which includes the following:

Causes Description
Heart Attack The high LDH levels can indicate heart tissue damage resulting from a heart attack, as the enzyme is released into the bloodstream when heart muscle cells are injured.
Liver Diseases Liver conditions, such as hepatitis or cirrhosis, can cause increased LDH levels due to significant liver cell damage and the subsequent release of the enzyme into the bloodstream.
Anaemia Specific types of anaemia, especially those involving significant red blood cell destruction, may lead to rising LDH levels as the enzyme is released from the damaged cells into the blood.
Muscle Trauma and Bone Fractures Physical injuries like muscle trauma or fractures can lead to the release of LDH into the bloodstream, as damaged muscle or bone cells liberate the enzyme.
Cancers and Their Treatment Certain cancers, as well as chemotherapy or other cancer treatments that cause widespread tissue damage can raise LDH levels due to the destruction of cancerous and healthy tissues.
Infections such as Meningitis, Encephalitis, and HIV Infections that affect the brain, spinal cord, or immune system can cause increased levels of LDH in response to cellular damage and inflammation associated with the infection.
Blood Flow Deficiency Cell death and/or organ failure due to reduced blood flow, such as from a severe injury or chronic condition, may result in increased LDH levels as the enzyme leaks from damaged cells.
Tissue Death Lack of blood supply or injury-induced tissue death releases LDH into the blood, leading to a rise in its level as a marker of tissue damage and death.

What Is the Treatment for High LDH?

Symptoms of Low LDH

Low LDH levels can signal genetic conditions like LDH deficiency, which impact how cells use energy and can lead to various symptoms depending on the deficiency type.

Symptom Description
Fatigue There is persistent fatigue and lack of energy due to the low metabolic rate and ineffective cell energy production, which can significantly impact daily activities and overall well-being.
Muscle Pain and Cramps During Exercise Muscle pain and cramps on exertion are often associated with an incomplete use of muscle energy, leading to discomfort and reduced physical performance.
Rhabdomyolysis Muscle tissues falling apart can result in the release of blood fibres, potentially causing severe complications and requiring medical intervention.
Myoglobinuria The presence of myoglobin in urine, which can result in dark-coloured urine, may indicate muscle damage and potentially cause significant harm to the kidneys.
Skin Rashes A red rash, with itchy patches on the skin, may be a sign of metabolic disturbances accompanying LDH deficiency, potentially indicating an underlying issue.
Red or Brown Urine Dark-coloured urine due to myoglobin released from damaged muscles can be a critical indicator of possible muscle destruction and should be evaluated promptly.
Kidney Damage Renal dysfunction resulting from the breakdown of products of damaged muscle tissue can lead to severe conditions, including kidney failure, necessitating urgent medical care.
Exercise Intolerance Difficulty in participating in physical activities arises from the exhaustion of muscles and decreased available energy, impacting quality of life and overall physical capability.

What If LDH in the Blood is Low?

What are the Causes of Low LDH?

Low LDH levels can explain why we might get certain health problems. While high LDH levels often indicate different diseases, low ones can imply specific underlying worries.

Condition Description
Genetic Disorders Low LDH levels can lower energy metabolism in cells and cause various symptoms, especially in rare genetic conditions such as LDH deficiency.
Vitamin C or E Vitamin C or E overdose could mislead the result of LDH tests, causing the figures to be lower than the actual.
Certain Medications Some drugs, like anti-cholesterol drugs and certain ones to manage long-term illnesses, may lower blood LDH levels.
Health Conditions Conditions affecting cellular turnover or damage, like some types of anaemia, may lead to decreased lactate dehydrogenase (LDH) levels.
Laboratory Errors Occasionally, errors in test procedures or handling samples, such as poor storage or contamination, can give misleadingly low results on LDH.

What Is the Treatment for Low LDH?

How to Maintain LDH Levels?

FAQs about LDH in Blood Tests