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A patient who makes her own saline solution for her contact lenses is examined at her physician's office because she has a blood red, infected right eye.The physician performs bacterial, fungal, and viral cultures, all of which are negative.What is the most probable cause of this infection?
Rh Antigen
A protein found on the surface of red blood cells, determining the presence or absence of the Rh factor in blood types.
AB Negative
A rare blood type in the ABO blood system, characterized by the absence of A, B, and Rh antigens on red cells.
Blood Type
The classification of human blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells.
Lymphoid Tissue
A type of connective tissue that includes lymphocytes, aiding in the immune response by fighting off infections.
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