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Blood serum

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By Jeannette Curtis; Caroline Rea, RN, BS, MS

Blood serum is the sticky, watery liquid left after the solid parts of the blood (the red blood cells, white blood cells, and platelets) have clumped (coagulated).

Author:Jeannette Curtis
Caroline Rea, RN, BS, MS
Medical Review:
Last Updated: 05/25/2007