When a blood sample is spun down in a centrifuge tube, what is found in the buffy coat?
A)Blood plasma
B)Red blood cells
C)Platelets
D)Red blood cells and platelets
E)White blood cells and platelets

Question

Quizplus · Accepted Answer

The buffy coat is the thin, whitish layer that forms between the plasma and red blood cells after centrifugation of a blood sample. It is made up of white blood cells and platelets, which have a higher density than plasma but lower density than red blood cells. Therefore, the correct choice is E, which indicates white blood cells and platelets.

When a Blood Sample Is Spun Down in a Centrifuge