Dexamethasone, Serum or Plasma by LC-MS/MS DEXMET
Method(s) | Liquid Chromatography-Tandem Mass Spectrometry |
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Specimen Required | |
Collect | One 5 mL gold (SST) top tube. Also acceptable: lavender (EDTA), pink (K2EDTA), or green (sodium heparin) top tubes |
Transport | Separate serum or plasma from cells ASAP or within 2 hours of collection. Transport 1 mL serum or plasma (Min: 0.5 mL). |
Remarks | Specimen should be collected between 8 - 10 a.m. |
Stability | After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 6 months |
Unacceptable Conditions | Room temperature specimens. |
Schedule | Sun |
Billing Code | 5011290 |
CPTCode | 80299 |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
Adults baseline: Less than 50 ng/dL.
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