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Lactate Dehydrogenase (LD) : 593
Test CodeLDHAU or 593
Alias/See Also
LD, LDH (Lactic Dehydrogenase), Lactic Acid Dehydrogenase
CPT Codes
83615
Transport Container
Preferred Specimen
1 mL serum
Alternative Specimens
Sodium heparin (green-top) tube or Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
1 mL serum
Alternative Specimens
Sodium heparin (green-top) tube or Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
Transport Temperature
Room temperature.
Specimen Stability
Serum
Room temperature: 14 days; Refrigerated: 48 hours; Frozen: Unacceptable
Plasma
Room temperature: 14 days; Refrigerated: Unacceptable; Frozen: Unacceptable
Room temperature: 14 days; Refrigerated: 48 hours; Frozen: Unacceptable
Plasma
Room temperature: 14 days; Refrigerated: Unacceptable; Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Received frozen, Anticoagulants other than heparin
Methodology
Spectrophotometry
Setup Schedule
Sunday - Saturday
Report Available
1 day
Reference Range
Male (U/L) Female (U/L)
<1 Month 125-735 145-765
1-11 Months 170-450 190-420
1-3 Years 155-345 165-395
4-6 Years 155-345 135-345
7-10 Years 140-270 140-270
11-13 Years 110-250 110-250
14-17 Years 110-230 110-230
18-49 Years 100-220 100-200
>49 Years 120-250 120-250
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.
Performing Laboratory
med fusion
