A 21-year-old college student falls off a hotel balcony in Cancun during spring break and suffers significant injury and blood loss. The rescue squad is called, and he is transported via ambulance to the nearest hospital. Because of the severity of the patient's injury, the emergency department must give the student a blood transfusion to combat his acute blood loss. In order to prevent a transfusion reaction, they must determine that the patient does not have preformed antibodies in his system that would bind and react to the transfused red blood cells. So they perform a Coombs test in which the patient's plasma is combined with red blood cells from a potential donor. What is the general term for an assay that tests for binding/clumping of a patient's antibodies with particulates such as red blood cells? A. Phagocytosis assay B. Enzyme-linked immunosorbent assay C. Proliferation assay D. Agglutination assay
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