Which position in the microcollection order should green and tan tubes be collected?

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Multiple Choice

Which position in the microcollection order should green and tan tubes be collected?

Explanation:
The key idea is preventing additive carryover between microcollection tubes. Green and tan tubes are kept toward the end of the sequence because they contain additives that can interfere with subsequent tests if drawn earlier. The tan tube is used for lead/trace-element testing, which is particularly sensitive to contamination, and the green tube contains heparin for chemistry tests. Placing both at the end minimizes the chance that their additives affect earlier or later samples, preserving accuracy. So, they should be collected last in the microcollection order.

The key idea is preventing additive carryover between microcollection tubes. Green and tan tubes are kept toward the end of the sequence because they contain additives that can interfere with subsequent tests if drawn earlier. The tan tube is used for lead/trace-element testing, which is particularly sensitive to contamination, and the green tube contains heparin for chemistry tests. Placing both at the end minimizes the chance that their additives affect earlier or later samples, preserving accuracy. So, they should be collected last in the microcollection order.

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