Which color top is used for toxicology testing with EDTA?

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Multiple Choice

Which color top is used for toxicology testing with EDTA?

Explanation:
Tube color coding indicates the specific additive and intended test use. For tests that require EDTA in a toxicology/trace-metal analysis, the Royal Blue top is used because these tubes are specifically designated for toxicology and trace element testing and are manufactured to minimize contamination and preserve metals for accurate measurement. Lavender tops also contain EDTA but are primarily used for hematology tests, not toxicology. Green tops contain heparin, and gray tops contain oxalate with fluoride for glucose testing. So, for EDTA-based toxicology testing, the Royal Blue tube is the appropriate choice.

Tube color coding indicates the specific additive and intended test use. For tests that require EDTA in a toxicology/trace-metal analysis, the Royal Blue top is used because these tubes are specifically designated for toxicology and trace element testing and are manufactured to minimize contamination and preserve metals for accurate measurement. Lavender tops also contain EDTA but are primarily used for hematology tests, not toxicology. Green tops contain heparin, and gray tops contain oxalate with fluoride for glucose testing. So, for EDTA-based toxicology testing, the Royal Blue tube is the appropriate choice.

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