Alpha Medical Lab
Lactate Dehydrogenase (LD)
Ordered Test Code:
LD
| Lab Test Component | Requirement |
|---|---|
| Test Name | Lactate Dehydrogenase (LD) |
| Alpha’s Order Test Code | LD |
| Specimen Collection Tube | SST/1mL |
| Collection Tube Handling | Sodium heparin (green-top) tube • Lithium heparin (green-top) tube |
| Minimum Volume | 0.5mL |
| Transport Temperture | Refrigerated |
| Stability | Refrigerated: 48 hours; Frozen: Not acceptable. |
| Collection Instructions | 1mL serum. |
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.
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