9. The direct Coombs' test is designed to detect when people:

a. Have an excessively high fever.
b. Quit making antibodies.
c. Make too many red blood cells.
d. Produce antibodies that bind to their own red blood cells.



Answer :

Final answer:

The direct Coombs' test detects the production of antibodies that bind to red blood cells, aiding in the diagnosis of various conditions.


Explanation:

The direct Coombs' test is used to detect diseases where individuals produce antibodies that bind to their own red blood cells. This test is crucial in diagnosing conditions like hemolytic transfusion reactions, autoimmune hemolytic anemia, infectious mononucleosis, syphilis, and Mycoplasma pneumonia.


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