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).
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||W. David Colby IV, MSc, MD, FRCPC - Infectious Disease|
|Last Revised||December 30, 2011|
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