The format of this user-friendly quick reference for veterinarians and students helps busy clinicians quickly determine a diagnostic plan for a sick cat. Each of the various organ systems is examined, clarifying the clinical signs, laboratory data, and further investigation required to arrive at a differential list or definitive diagnosis. In addition, Notes on Feline Internal Medicine highlights common primary presenting signs and addresses various feline peculiarities. References, line drawings, and radiographs provide further assistance.