Which symptom would likely require further examination during a throat assessment?

Swelling in the throat area is a concerning symptom that would likely require further examination during a throat assessment. This symptom could indicate a range of underlying issues, including infections, inflammation, allergies, or even more serious conditions such as tumors or abscesses. Swelling can affect the airway, leading to breathing difficulties or discomfort, making it essential for health professionals to investigate the cause.

In contrast, visible teeth alignment, normal breathing patterns, and compliant behavior are not typically associated with immediate concerns that necessitate further examination of the throat. While these aspects may contribute to a broader understanding of a dog's health, they do not present the same level of urgency as swelling, which can indicate a potentially serious condition. Thus, noticing swelling would prompt a more detailed evaluation to ensure proper diagnosis and treatment.