Diagnosis is best described as which of the following?

• A. Stopping disease before it starts
• B. System responsible for breathing
• C. An organ used for breathing
• D. Identifying a disease

Answer: (D)

Diagnosis is figuring out exactly what disease or condition is affecting an animal by looking at signs, history, and test results. This identification is the essence of diagnosing—the act of naming the health issue after evaluating the clues. It isn’t about preventing disease, which would be prevention, nor about describing a breathing system or an organ, which are anatomical concepts. In practice, making a diagnosis guides how you treat and manage the animal, because you know precisely what condition you’re dealing with.