Is LDH 312 high, normal or dangerous? What does Lactate dehydrogenase level 312 mean?

📅 Medical Review Date: January 8, 2026

Your LDH level of 312 is a High LDH level.

An LDH level of 312 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	103.12
5-10 years	106.337
10-15 years	109.655
15-20 years	113.076
20-25 years	116.604
25-30 years	120.242
30-35 years	123.994
35-40 years	127.863
40-45 years	131.852
45-50 years	135.966
50-55 years	140.208
55-60 years	144.582
60-70 years	149.093
70-80 years	153.745
80-90 years	158.542
90-100 years	163.489
>100 years	168.59

*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

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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

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	103.214
5-10 years	106.531
10-15 years	109.954
15-20 years	113.487
20-25 years	117.134
25-30 years	120.898
30-35 years	124.783
35-40 years	128.793
40-45 years	132.932
45-50 years	137.204
50-55 years	141.613
55-60 years	146.164
60-70 years	150.861
70-80 years	155.709
80-90 years	160.713
90-100 years	165.878
>100 years	171.209

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