- Patient Preparation
- Diet, medication, and nutritional supplements may introduce interfering substances. Patient should be encouraged to discontinue nutritional supplements, vitamins, minerals, and non-essential over-the-counter medications (upon the advice of their physician).
- Royal blue (K2EDTA or Na2EDTA).
- Specimen Preparation
- Transport 7 mL whole blood in the original collection tube. (Min: 0.5 mL)
- Storage/Transport Temperature
- Room temperature. Also acceptable: Refrigerated.
- Unacceptable Conditions
- Heparin anticoagulant. Clotted specimens.
- If the specimen is drawn and stored in the appropriate container, the trace element values do not change with time. Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
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