Which sign would indicate escalation from mild to more severe heat distress?

Which sign would indicate escalation from mild to more severe heat distress?

• A. Slight decrease in performance.
• B. Normal mucous membranes.
• C. Rectal temperature rising toward 106-108 F and uncontrolled panting.
• D. No signs.

Answer: (C)

As heat distress progresses, the key indicator is the body’s core temperature rising into the range of heat stroke, paired with a failure of normal cooling. A rectal temperature approaching 106–108 F shows the dog is no longer just uncomfortable—it's entering a dangerous state where organs can be damaged if not treated immediately. Uncontrolled panting reflects the body's overwhelmed thermoregulation and signals urgent need for cooling and veterinary care. By contrast, a slight drop in performance can be an early sign, normal mucous membranes don’t indicate worsening, and no signs means no distress.

As heat distress progresses, the key indicator is the body’s core temperature rising into the range of heat stroke, paired with a failure of normal cooling. A rectal temperature approaching 106–108 F shows the dog is no longer just uncomfortable—it's entering a dangerous state where organs can be damaged if not treated immediately. Uncontrolled panting reflects the body's overwhelmed thermoregulation and signals urgent need for cooling and veterinary care. By contrast, a slight drop in performance can be an early sign, normal mucous membranes don’t indicate worsening, and no signs means no distress.