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- White Cross
Therapeutic drug management; detect presence of ephedrine
Gas chromatography/electron capture detection (GC/EC)
Serum or plasma, protect from light
Serum or plasma should be separated from cells within two hours of venipuncture. Submit serum or plasma in a plastic transport tube.
Submission/transport (<3 days): Room temperature. For storage beyond three days, specimen should be refrigerated or frozen. Protect from light.
Causes for Rejection
Gel-barrier tubes; specimen not light-protected