What color indicates paleness of membranes in a K-9?

The correct answer identifies the color that indicates paleness of membranes in a canine, which is indeed pale white. In veterinary practice, assessing the color of a dog's mucous membranes, such as those found in the gums, is crucial for understanding the animal's health status. Pale white membranes can be a sign of various health issues, including anemia, shock, or reduced blood flow, indicating that the dog may be in distress and requires immediate attention.

Other colors reflect different conditions: red membranes may indicate hyperemia or a potential infection; blue membranes suggest cyanosis, indicating a lack of oxygen; and bright yellow, or jaundice, points to liver dysfunction or other systemic issues. Each color serves as an important diagnostic tool, but pale white specifically signifies paleness and should prompt further evaluation of the dog's health.