Lactate dehydrogenase (LD)
$ 73.00
Lactate Dehydrogenase LD Blood Test
LDH Blood Test for General Tissue Damage and Cell Injury Screening
The Lactate Dehydrogenase LD Blood Test, also called an LDH test, measures the level of lactate dehydrogenase in your blood.
LDH is an enzyme found in many tissues throughout the body, including the heart, liver, muscles, kidneys, lungs, blood cells, and other organs. When cells are damaged or destroyed, LDH can be released into the bloodstream.
This test may be useful when a healthcare provider wants a general marker of tissue injury, cell damage, inflammation, or provider-directed monitoring.
This service provides access to lab testing only. It is intended as a screening and monitoring tool and does not diagnose, treat, or replace care from a licensed healthcare provider.
✔ Measures lactate dehydrogenase, also called LD or LDH
✔ General marker of tissue or cell damage
✔ Simple blood draw
✔ Doctor's order included
✔ No insurance required
⏱ Typical turnaround: results are usually emailed in 1–3 days.
What This Test Measures
Lactate Dehydrogenase
This blood test measures lactate dehydrogenase, an enzyme involved in energy production inside cells.
- Test name: Lactate Dehydrogenase
- Also known as: LD, LDH, Lactic Acid Dehydrogenase
- Sample type: Blood
- Purpose: General tissue damage and cell injury screening
- Fasting: Usually not required unless instructed
Why Order an LDH Test?
- General tissue damage screening - LDH may rise when cells or tissues are damaged.
- Liver or muscle evaluation - LDH may be reviewed with other liver or muscle markers.
- Anemia evaluation - LDH may be reviewed when hemolysis or certain anemia patterns are being considered.
- Inflammation or illness monitoring - LDH may be used as part of broader provider-directed monitoring.
- Cancer-related monitoring - Some providers use LDH as one marker among many in certain cancer-related evaluations.
- Provider-directed testing - Useful when your healthcare provider specifically requests LDH testing.
Who May Consider This Test?
This test may be appropriate for:
- Individuals whose healthcare provider requested an LDH blood test
- People being evaluated for possible tissue or cell damage
- Patients monitoring certain liver, muscle, blood, or inflammatory concerns with a provider
- Individuals who need LDH as part of a broader health evaluation
- Customers who want doctor-ordered LDH testing without using insurance
LDH Isoenzymes
LDH exists in different forms called isoenzymes. These isoenzymes are found in different tissues, such as heart, red blood cells, lungs, liver, and skeletal muscle.
This product is for general LDH testing. If your healthcare provider requested LDH isoenzymes, that may be a different test and should be confirmed before ordering.
Important: LDH Is a Nonspecific Marker
LDH can be elevated for many reasons because it is found in many tissues. A high LDH result does not identify the exact organ, tissue, or cause of damage by itself.
LDH is usually interpreted with other tests such as CBC, CMP, liver enzymes, bilirubin, CK, troponin, inflammatory markers, imaging, symptoms, and medical history.
Important Symptom Warning
If you have chest pain, shortness of breath, fainting, severe weakness, severe abdominal pain, yellowing of the skin or eyes, dark urine, confusion, severe muscle pain, or any urgent medical concern, seek medical care promptly.
Do not use this LDH test as a substitute for urgent medical evaluation, diagnosis, or treatment.
Important: Screening Only
LabReqs and SchoolTiters provide access to lab testing. We do not diagnose heart attack, liver disease, kidney disease, cancer, anemia, pulmonary embolism, muscle disease, inflammatory disease, or any medical condition.
Results should be reviewed with a licensed healthcare provider, especially if LDH is elevated, symptoms are present, or you are being monitored for a known medical condition.
Important Limitations
- This test does not diagnose a medical condition by itself.
- LDH is nonspecific and can be elevated in many different conditions.
- Hemolysis or specimen handling issues may falsely elevate LDH results.
- A normal LDH result does not rule out every condition.
- Additional testing may be needed depending on symptoms and clinical context.
- This test does not include LDH isoenzymes unless ordered separately.
Before Ordering
- Confirm whether your provider requested LDH or LDH isoenzymes.
- If you have urgent symptoms, seek medical care instead of ordering this test.
- Tell your healthcare provider about recent exercise, injury, illness, medications, and known medical conditions.
- If you are unsure whether LDH testing is right for you, ask your healthcare provider before ordering.
How It Works
- Order online.
- Receive your lab order. A doctor's order is included.
- Visit a participating lab location.
- Complete a simple blood draw.
- Receive your results. Result timing may vary by lab, location, and processing requirements.
Why Choose This Test?
✅ Simple blood test for LDH level
✅ Useful as a general tissue damage or cell injury marker
✅ Helpful for provider-directed monitoring
✅ Doctor's order included
✅ No insurance needed
✅ Convenient online ordering
Frequently Asked Questions
What does an LDH blood test check?
An LDH blood test checks the level of lactate dehydrogenase, an enzyme released into the blood when cells or tissues are damaged.
What can cause high LDH?
LDH can be elevated for many reasons, including tissue injury, liver problems, muscle injury, certain anemias, inflammation, infections, and other medical conditions. Your provider should interpret the result.
Does LDH tell which organ is damaged?
Not by itself. LDH is found in many tissues, so additional testing is usually needed to understand the source.
Is this the same as LDH isoenzymes?
No. This product is for general LDH testing. LDH isoenzymes are a more specific test and may need to be ordered separately.
Do I need to fast?
Fasting is usually not required unless your healthcare provider gives you different instructions.
Does this test diagnose disease?
No. This test provides lab information only. Diagnosis and treatment decisions must be made by a licensed healthcare provider.
Is a doctor's order included?
Yes. A doctor's order is included with this lab test.
Order Your Lactate Dehydrogenase LD Blood Test
Use this test when you need LDH testing for general tissue damage screening, cell injury monitoring, or provider-directed evaluation.
Order your Lactate Dehydrogenase LD Blood Test today.
Lactate dehydrogenase (LD)
$ 73.00
