Specimen Requirements

Container Type: Lithium Heparin (Green Top) or Serum Separator (Gold Top)

Specimen Type: Plasma or Serum

Preferred Volume: 1 mL

Emergency Minimum Volume: 0.3 mL

Specimen Processing: Separate serum or plasma from cells as soon as possible by centrifugation. Store and transport refrigerated. One freeze/thaw acceptable.

Limitations: Samples should not be taken from patients receiving therapy with high biotin doses (i.e. >5 mg/day) until at least 8 hours following the last biotin administration.

Alternate Specimens: Plain Serum Tube (Red Top), Sodium Heparin (Dark Green Top)

Stability: