What Happens When a Cat's Temperature Gets Too High?

When a cat's temperature gets too high, it's a serious condition called hyperthermia.

Physiological Effects

Increased metabolism: The body tries to cool down, leading to faster breathing and heart rate.
Vasodilation: Blood vessels dilate to bring more blood to the skin surface, attempting to release heat.
Panting: Cats don't sweat like humans, so they pant to evaporate moisture and cool down.
Weakness: Muscle weakness and lethargy set in as the body struggles to function.
Organ damage: High temperatures can damage vital organs like the brain, liver, and kidneys.

Symptoms

High body temperature: A normal temperature for cats is between 100.5°F and 102.5°F (38°C - 39.2°C). A temperature above 103°F (39.4°C) is considered hyperthermia.
Panting: Excessive panting, especially when the cat is at rest.
Lethargy: Weakness, sluggishness, and lack of energy.
Rapid heartbeat: Increased heart rate.
Vomiting: May experience nausea and vomiting.
Diarrhea: Loose stools.
Seizures: In severe cases, seizures can occur.
Coma: In extreme cases, the cat may lapse into a coma.

Causes

Heatstroke: Exposure to extreme heat, especially when trapped in a hot car or outdoors without shade and water.
Infections: Bacterial, viral, or fungal infections can cause fever.
Dehydration: Lack of fluids can lead to overheating.
Certain medications: Some medications can cause a rise in body temperature.
Underlying medical conditions: Conditions like thyroid disease or cancer can cause hyperthermia.

What to do

Seek immediate veterinary attention: Hyperthermia is a medical emergency.
Cool the cat down gradually: Place cool, wet towels on the cat's body, but avoid ice water as it can cause shock.
Give the cat water: If the cat is conscious, offer water to help rehydrate them.
Do not induce vomiting unless directed by a veterinarian.

Prevention

Provide shade and water: Ensure your cat has access to cool, shady areas and fresh water.
Never leave a cat in a hot car: Even with the windows cracked, temperatures inside a car can quickly rise to dangerous levels.
Monitor your cat's temperature: If your cat has any of the symptoms of hyperthermia, take their temperature and seek veterinary help immediately.

Remember, hyperthermia is a serious condition that can be fatal if not treated promptly. If you suspect your cat has a high temperature, seek immediate veterinary care.