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Test Code 111 Lactate Dehydrogenase (LD)

Additional Codes


PowerChart: Lactate Dehydrogenase (LDH) Level

Epic: LAB96 Lactate Dehydrogenase

MA Cerner: Lactate Dehydrogenase.

Test Method

UCL: Enzymatic Rate Method; Beckman DXC600/DXC880i

MA: Rate Reaction; Siemens

Specimen Requirement

0.5 mL of serum or plasma is required. (Medical Associates Serum only)

Additional Specimen Collection Information

Collect blood in a lithium heparin, green-top or red-top tube. PST and SST (gel tubes) are acceptable.Serum or plasma should be separated from contact with the cells within 2 hours of collection. Specimens not centrifuged within 4 hours of collection may be rejected. Refrigerated or frozen specimens are not recommended. Hemolyzed specimens are not acceptable. Samples with >3+ lipemia must be cleared prior to analysis.


Testing is performed Monday through Sunday.

Routine: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

107-195 iu/L

CPT Code Information

83615 Chemistry: Lactate dehydrogenase (LD,) (LDH)

Useful For

Investigation of a variety of diseases involving the heart, liver, muscle, kidney, lung, and blood

Monitoring changes in tumor burden after chemotherapy, although, lactate dehydrogenase elevations in patients with cancer are too erratic to be of use in the diagnosis of cancer

LOINC Code Information

2532-0 Lactate Dehydrogenase [Enzymatic Activity/Volume] In Serum Or Plasma