What additive is found in Tan top tube and what tests is it commonly used for?

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Multiple Choice

What additive is found in Tan top tube and what tests is it commonly used for?

Tan top tubes use potassium ethylenediaminetetraacetic acid (K2EDTA) as the additive. EDTA acts as an anticoagulant, keeping blood in a liquid state so that the lead can be measured accurately in whole blood without clotting artifacts. K2EDTA is preferred for lead determinations because it preserves the sample well and minimizes contamination that could affect metal measurements. This tube is commonly used for blood lead level testing, typically analyzed by methods like atomic absorption spectroscopy or ICP‑MS.

Tan top tubes use potassium ethylenediaminetetraacetic acid (K2EDTA) as the additive. EDTA acts as an anticoagulant, keeping blood in a liquid state so that the lead can be measured accurately in whole blood without clotting artifacts. K2EDTA is preferred for lead determinations because it preserves the sample well and minimizes contamination that could affect metal measurements. This tube is commonly used for blood lead level testing, typically analyzed by methods like atomic absorption spectroscopy or ICP‑MS.

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