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Phlebotomy Technician

Category - Procedures & Tubes

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What is the purpose and effect of liquid EDTA on blood?

It is an anticoagulant; it removes calcium from the blood.
It is an antiglycolytic; it preserves glucose in the blood.
It is a clot activator; it stimulates clot formation.
It is an anticoagulant; it inactivates thrombin and thromboplastin.

Explanation

Answer: A - Liquid EDTA is used to prevent clot formation by forming calcium salts, which removes calcium from the blood. Calcium is needed for clot formation. Liquid EDTA is found in lavender top tubes.

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