Is LDH 329 high, normal or dangerous? What does Lactate dehydrogenase level 329 mean?

📅 Medical Review Date: January 7, 2026

Your LDH level of 329 is a High LDH level.

An LDH level of 329 U/L usually means tissue damage has occurred somewhere in the body. It suggests cell injury or destruction. High levels of LDH can cause fatigue, muscle pain, shortness of breath, dark urine, fever, and jaundice depending on which tissue is affected. This can be caused by heart attack, liver disease, kidney disease, muscle injury, or certain cancers. Further tests are often needed to identify the cause and guide appropriate treatment.

High LDH levels may indicate underlying health problems. The normal range is typically between 100 U/L and 190 U/L. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal LDH range for men is :100 - 190 U/L

Ideal values of LDH depending on age (male) :

Age	Ideal LDH value
<5 years	103.29
5-10 years	106.688
10-15 years	110.198
15-20 years	113.824
20-25 years	117.569
25-30 years	121.437
30-35 years	125.432
35-40 years	129.559
40-45 years	133.821
45-50 years	138.224
50-55 years	142.772
55-60 years	147.469
60-70 years	152.321
70-80 years	157.332
80-90 years	162.508
90-100 years	167.855
>100 years	173.377

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our LDH experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides LDH, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

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Some examples of conditions that increase or decrease LDH levels include:

• Acute kidney disease
• Acute liver disease
• Sepsis
• Infections such as infectious mononucleosis
• Pancreatitis

Receive world-class medical opinion about your high LDH levels over email.Upload blood test report now

Normal range of LDH found among women :100-190 U/L

Ideal values of LDH depending on age (female) :

Age	Ideal LDH value
<5 years	103.389
5-10 years	106.893
10-15 years	110.515
15-20 years	114.26
20-25 years	118.132
25-30 years	122.135
30-35 years	126.274
35-40 years	130.553
40-45 years	134.977
45-50 years	139.551
50-55 years	144.28
55-60 years	149.169
60-70 years	154.224
70-80 years	159.45
80-90 years	164.853
90-100 years	170.439
>100 years	176.215

If you take a LDH blood test and the results are not in the normal range (100-190 U/L), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

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How the LDH Test Is Done :

When your doctor orders a LDH test, it involves a straightforward blood draw to measure your LDH levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your LDH test results are usually available within a few hours.

Medical References

• MedlinePlus – Lactate Dehydrogenase (LDH) Test
• Cleveland Clinic – LDH (Lactate Dehydrogenase) Test: What It Is & Results
• MedlinePlus – LDH isoenzyme blood test