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| 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 Code593
CPT Codes
83615
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Sodium heparin (green-top) tube • Lithium heparin (green-top) tube
Instructions
Do not refrigerate or freeze
Transport Container
Serum separator tube (SST)
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 (SP)
Setup Schedule
Daily
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
| Quest Diagnostics-Lenexa |
| 10101 Renner Blvd |
| Lenexa , KS 66219-9752 |
