Which signs are evaluated to assess aggression risk during pre-sedation evaluation?

• A. Signs of aggression/FAS level
• B. Eye color
• C. Tail length
• D. Paw coloration

Answer: (A)

Evaluating aggression risk starts with how the animal is behaving and how stressed it seems. In pre-sedation screening, clinicians look for signs that the animal may react aggressively and assign a Fear/Anxiety/Stressor (FAS) level. This combination tells you how likely the animal is to react during handling and restraint, guiding the sedation plan to keep everyone safe and minimize distress. Examples of relevant signs include growling, snarling, bared teeth, direct staring, stiff body posture, ears pinned back, or lip-licking combined with agitation. A higher FAS level signals greater risk and may prompt strategies such as increased farthest-possible distance during handling, protective equipment, extra staff, muzzle use, gentler handling, and tailored premedication or analgesia.

Physical traits like eye color, tail length, or paw coloration do not reflect current aggression risk or how the animal will respond to handling, so they aren’t useful indicators in this context.