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Test Code LDH Lactate Dehydrogenase, LAB96

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Green-top (heparin) tube-Hemolyzed specimen is not acceptable.

Acceptable: Gold-top serum gel tube or plain red-top tube

Specimen Volume: 0.1 mL of plasma or serum

Stability: Separated specimens should be analyzed immediately or kept at room temperature

                for up to 3 days. Do not refrigerate or freeze.


Reference Values

84-246 U/L

Useful For

Elevated serum levels of LDH have been observed in a variety of disease states. The highest levels are seen in patients with megaloblastic anemia, disseminated carcinoma and shock. Moderate increases occur in muscular disorders, nephrotic syndrome and cirrhosis. Mild increases in LDH activity have been reported in cases of myocardial or pulmonary infarction, leukemia, hemolytic anemia and non-viral hepatitis.

Day(s) Test Set Up

Monday through Sunday


Rate Reaction-International Federation of Clinical Chemists (IFCC) Standard

Test Classification and CPT Coding