Final answer:
The ranges for severely anemic cats and dogs are C) Cat: <20%, Dog: <25%.
Step-by-step explanation:
The correct option is: C) Cat: <20%, Dog: <25%. These values represent the approximate ranges for severe anemia in cats and dogs based on packed cell volume (PCV) or hematocrit measurements. PCV is the percentage of whole blood volume occupied by red blood cells. Severe anemia is typically defined by a significant decrease in PCV levels, indicating a low concentration of red blood cells and diminished oxygen-carrying capacity. It's essential for veterinary professionals to assess and monitor PCV levels in cats and dogs, as severe anemia can have various underlying causes, including blood loss, chronic diseases, or bone marrow disorders. The specified ranges provide a guideline for identifying severe anemia in these animals.