A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Lactate Dehydrogenase (LD)

Test Code
LDH


Preferred Specimen
1 mL serum


Minimum Volume
0.5 mL


Other Acceptable Specimens
Heparinized plasma


Instructions
None


Transport Container
Serum separator tube (SST)


Transport Temperature


Ambient




Specimen Stability
 Ambient: 7 days
Refrigerated: 7 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Received frozen • Anticoagulants other than heparin


Methodology
Spectrophotometry (SP)

Setup Schedule
24/7


Report Available
Same day


Reference Range
100-225 U/L


Clinical Significance
Elevations in serum lactate dehydrogenase occur from myocardial infarction, liver disease, pernicious and megaloblastic anemia, pulmonary emboli, malignancies, and muscular dystrophy. Since lactic dehydrogenase is present in many body tissues, it's diagnosis usefulness is limited. Tissue specificity may be enhanced by isoenzyme analysis.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.