The Lactate Dehydrogenase (LDH) test measures the level of the LDH enzyme in the blood. This enzyme is crucial for energy production in the body's cells and is found in nearly every tissue—including the heart, liver, muscles, kidneys, lungs, and blood cells. LDH is released into the bloodstream when cells are damaged or destroyed. Because of this, elevated LDH levels often indicate tissue damage and can be a marker for a variety of medical conditions. However, LDH is not disease-specific, meaning further testing is often required to determine the exact cause of an abnormal result. The LDH test is commonly used to support the diagnosis of conditions such as hemolytic anemia, liver disease, certain cancers, and infections. It also plays a key role in monitoring the severity or progression of illnesses, including muscle injuries and inflammatory diseases.

The LDH Test is affordably priced, starting from ₹450. This includes home sample collection within 60 minutes of booking. Our team ensures safe, hygienic, and hassle-free sample collection directly from your home. The final cost may vary slightly depending on your exact location, any offers available, and the chosen laboratory. We are committed to offering competitive pricing while maintaining the highest standards of diagnostic accuracy. You can check the LDH Test price across cities and confirm availability on the Orange Health website before booking.

The LDH test is simple and minimally invasive, but certain preparations can ensure accuracy and ease of testing.

Prerequisites

No fasting is required for an LDH test. It can be performed at any time of the day unless combined with other tests that require fasting. Your doctor will guide you based on your health history.

Best Time to Get Tested

There is no specific best time, but early morning appointments are often preferred for convenience. Orange Health allows flexible scheduling, including same-day collections.

You may be advised to take the LDH test if you:

• Show symptoms of organ or tissue damage

• Are being evaluated for liver, lung, or blood-related disorders

• Are undergoing chemotherapy or other treatments that affect cell turnover

• Need to monitor a known chronic condition

Inform your doctor if you’re taking medications like anesthetics, aspirin, or narcotics, as these may affect LDH levels. Vigorous exercise before the test can also temporarily raise LDH, so it is best avoided 24 hours prior to sample collection.

Your doctor may recommend an LDH test if you are experiencing symptoms that suggest tissue damage or if you are being monitored for chronic conditions that can affect the organs.

• Detecting Tissue Damage : LDH is a general marker of cellular damage. Elevated levels may indicate injury to the heart, liver, lungs, kidneys, muscles, or red blood cells.

• Monitoring Disease Progression : In patients with chronic conditions, such as certain cancers, the LDH test can help track disease severity or response to treatment.

• Supporting Diagnosis : While LDH is not specific to any one disease, high levels—combined with other test results—can support the diagnosis of conditions such as hemolytic anemia, hepatitis, or lymphoma.

• Assessing Muscle or Liver Disorders : Muscle trauma or liver inflammation can lead to a spike in LDH, prompting further investigation.

Symptoms that may prompt this test:

• Persistent fatigue or weakness

• Unexplained muscle aches or pain

• Jaundice or signs of liver stress

• Shortness of breath or chest pain

• Signs of infection or inflammation

The LDH test is an essential diagnostic tool to support early detection, monitoring, and management of various health conditions.

Understanding LDH test results requires considering your overall clinical condition, symptoms, and other test findings.

• Parameter : LDH (Lactate Dehydrogenase)

• Biological Reference Range : 135 – 225 U/L

Interpretation:

Elevated LDH levels can occur in conditions such as myocardial infarction (heart attack), liver disease (hepatitis, cirrhosis), hemolytic anemia, muscle trauma, infections, or cancers like lymphoma and leukemia.

Slightly elevated LDH is common in physically active individuals or during minor illnesses but should still be evaluated if persistent.

Normal or low LDH levels are typically not a concern but must be reviewed in the context of your full clinical picture. LDH is a non-specific test, meaning abnormal results require further investigations or additional tests for a definitive diagnosis. Your doctor will evaluate the result alongside your symptoms, medical history, and other diagnostic reports.