What device is used to separate blood components by spinning at high speed?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

What device is used to separate blood components by spinning at high speed?

Explanation:
Separating blood components by spinning at high speed relies on centrifugation. By spinning rapidly, dense red blood cells are pushed toward the bottom, a middle layer of white blood cells and platelets forms, and the lighter plasma remains on top. This density-based separation lets clinicians isolate plasma or serum for tests or concentrate specific components for transfusion. Other devices listed have different roles: a stethoscope is for listening to heart and lung sounds, a thermometer measures temperature, and a microscope is used to observe specimens—none of these separate blood components by density or spin.

Separating blood components by spinning at high speed relies on centrifugation. By spinning rapidly, dense red blood cells are pushed toward the bottom, a middle layer of white blood cells and platelets forms, and the lighter plasma remains on top. This density-based separation lets clinicians isolate plasma or serum for tests or concentrate specific components for transfusion.

Other devices listed have different roles: a stethoscope is for listening to heart and lung sounds, a thermometer measures temperature, and a microscope is used to observe specimens—none of these separate blood components by density or spin.

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