Sign in →

Test Code LDH Lactate Dehydrogenase

Additional Codes

Cerner

NextGen

LDH Total

LDH Total

Alternate Name(s)

LD

LDH

Lactic Dehydrogenase

Lactate Dehydrogenase

Useful For

Lactate dehydrogenase is an enzyme with a widespread tissue distribution and increased levels reflect tissue damage.  Causes of elevated LDH include neoplastic states (i.e. leukemia, lymphoma, solid tumors), anemia (i.e. megaloblastic, hemolytic), inflammatory and infectious states, disorders of the lung and muscle, renal and myocardial infarctions, hepatic disease, trauma and shock.

Methodology

Multiple-point rate, Pyruvate to lactate

Patient Preparation

None

Collection Instructions

Standard phlebotomy practices.

Specimen Requirements

Container

Specimen Type

Tube

Lithium Heparin Plasma

PST

 or  or 

Serum

 or 

SST

 or  or 

 

Stability

Storage

Temperature

Stability

Room Temperature

18-28°C

≤ 2 days

If separated within 1 hour

Refrigerated

 2-8°C

Not Recommended

Frozen

≤-18 °C

Not Recommended

Rejection Criteria

Gross Hemolysis

Result Reporting and Reference Values

Reported in U/L.

Low

High

Critical Low

Critical High

120

246

N/A

N/A

Reflex Testing

None

Limitations

Dipyrone and Methotrexate both show a negative bias.