Lactate Dehydrogenase, Isoenzymes LDISO
Method(s) | Quantitative Enzymatic/Electrophoresis |
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Specimen Required | |
Collect | One 5 mL gold (SST) or plain red top tube. |
Transport | 1 mL serum room temperature. (Min: 0.6 mL) Do NOT refrigerate or freeze. |
Remarks | Separate serum from cells ASAP or within 2 hours of collection. Hemolyzed specimens and serum which has not been separated from cells show elevated LD-1, LD-2, LD-3, LD-4 and LD-5 are labile at low temperatures and are erroneously low in samples that have been refrigerated or frozen. |
Stability | After separation from cells: Ambient: 1 week; Refrigerated: Unacceptable; Frozen: Unacceptable |
Unacceptable Conditions | Frozen, refrigerated, or hemolyzed specimens. Specimens collected with EDTA, potassium oxalate, or sodium fluoride anticoagulants. |
Schedule | Daily |
Billing Code | 5010307 |
CPTCode | 83625 LD Isoenzymes; 83615 Total LD |
Notes | Allow serum to clot completely at room temperature. Separate serum from cells ASAP. |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
LD-1: 14-27% Lactate Dehydrogenase, Total: |