What are common signs of a cat in respiratory distress?

Rapid breathing and open-mouth breathing are clear indicators of respiratory distress in cats. When a cat is experiencing difficulty breathing, it often results in an increased respiratory rate, which can manifest as rapid, shallow breaths as the body attempts to take in more oxygen. Open-mouth breathing is particularly concerning in felines, as it is an abnormal behavior for them; cats typically breathe through their noses. This change can indicate that the cat is struggling to get enough air, and it requires immediate attention.

The other options do not imply respiratory distress: excessive grooming and weight loss may suggest other health issues, playful behavior and changes in appetite are often signs of general well-being rather than distress, and aggressive behavior could be a response to pain or fear but does not specifically indicate respiratory problems. Therefore, recognizing rapid and open-mouth breathing as signs of respiratory distress is crucial for appropriate intervention.