What color is used to identify lead-free blood collection tubes?

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Multiple Choice

What color is used to identify lead-free blood collection tubes?

Explanation:
Lead testing needs tubes that are specifically manufactured to be free of lead contamination. The color coding on evacuated tubes is used to signal special requirements, and tan-topped tubes are designated as lead-free. Using these ensures the sample’s reported lead level isn’t affected by lead leaching from the tube itself. Other tube colors indicate different additives or purposes (for example, blue for sodium citrate, green for heparin, lavender for EDTA, gray for fluoride/oxalate, and royal blue for trace elements), but the tan color specifically flags lead-free tubes for accurate lead measurements.

Lead testing needs tubes that are specifically manufactured to be free of lead contamination. The color coding on evacuated tubes is used to signal special requirements, and tan-topped tubes are designated as lead-free. Using these ensures the sample’s reported lead level isn’t affected by lead leaching from the tube itself. Other tube colors indicate different additives or purposes (for example, blue for sodium citrate, green for heparin, lavender for EDTA, gray for fluoride/oxalate, and royal blue for trace elements), but the tan color specifically flags lead-free tubes for accurate lead measurements.

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