NAVTA Practice Test

Question: 1 / 400

A purple top tube, once spun, will result in ____.

Plasma.

When a purple top tube is spun, it results in plasma. Other options such as platelets, whole blood, and serum are incorrect because a purple top tube is specifically used for the collection of whole blood for coagulation testing, not for platelet or serum collection. The tube contains an anticoagulant (EDTA) which prevents clotting and allows for the separation of plasma from other components of the blood. Therefore, plasma is the expected result after spinning a purple top tube.

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Platelets.

Whole blood.

Serum.

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