Lactate Dehydrogenase, Isoenzymes LDISO
| Method(s) | Quantitative Enzymatic/Electrophoresis |
|---|---|
| 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: |
|
