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16-06-2019
Chemistry

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What additive are in a lavender tube for phlebotomists

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17-06-2019

Answer:

K₂EDTA

Explanation:

The additive in the lavender tube is potassium dihydrogen ethylenediaminetetraacetate (K₂EDTA).

EDTA is a powerful chelating agent, that is, it binds strongly to metal cations.

Its main function in hematology labs is to prevent the blood from clotting by binding the Ca²⁺ ions.

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