Normal range LDH. Usually, normal levels range between 140 units per liter (U/L) to 280 U/L for adults and tend to be higher for children and teens. The specific normal ranges for LDH levels are: ...

Normal LDH ranges For adults, normal LDH levels in the blood are usually 140–280 units per liter (U/L) . Doctors use a person’s symptoms to help interpret the data.

Investigators reported a median serum LDH level of 731.5 IU/L (range, 188-6292) in patients with AML, which was significantly higher than that of healthy controls (214 IU/L; range, 107-330; P <.001).