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Veterinary Technician

Category - Lab Procedures

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What is the additive that prevents clotting in purple top sample collection vacutainers?

Ether diamine tetris acid
Ethylene diamine tetra-acetic acid
Ethanolamine diamniotic tetra-acetic acid
Ethaverine diamond tetra acid

Explanation

Answer: B - The additive that prevents the clotting of whole blood in purple top sample collection vacutainers is ethylene diamine tetra-acetic acid. This is required when the use of unclotted whole blood is needed.

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