What to do if a rat has a high temperature? - briefly
Check the rat’s temperature with a rectal thermometer; if it exceeds normal (about 103 °F/39.5 °C), keep the animal warm, provide fresh water, and contact a veterinarian without delay. Immediate professional treatment is essential to prevent complications.
What to do if a rat has a high temperature? - in detail
A rat with an elevated body temperature requires prompt assessment and intervention.
First, confirm the fever. Use a digital rectal thermometer designed for small animals; insert gently 0.5 in (1.3 cm) into the rectum and read the measurement. Normal rodent temperature ranges from 99.5 °F to 102.5 °F (37.5 °C–39.2 °C). Values above this indicate hyperthermia.
Second, create a calm, warm‑but‑not‑overheating environment. Place the animal in a quiet cage with a soft bedding layer, and provide a heat source such as a low‑wattage heating pad set to 90 °F (32 °C). Monitor continuously to avoid burns.
Third, ensure adequate hydration. Offer fresh water in a shallow bottle; if the rat refuses, administer sterile isotonic saline (0.9 % NaCl) subcutaneously in 0.5‑ml aliquots using a 25‑gauge needle. Repeat every 4–6 hours as needed.
Fourth, provide easily digestible nutrition. Offer high‑calorie, low‑fiber foods like boiled egg yolk, cooked chicken, or a specialized rodent recovery formula. Present in small, frequent portions to encourage intake.
Fifth, observe for additional signs: lethargy, nasal discharge, abnormal breathing, or changes in stool. Record temperature every 2–4 hours; a declining trend indicates improvement, while a rise suggests worsening condition.
Sixth, seek veterinary care without delay if any of the following occur: temperature exceeds 104 °F (40 °C), the animal shows signs of shock (pale gums, rapid heartbeat), dehydration persists despite fluid therapy, or there is no temperature reduction after 12 hours of supportive measures. The veterinarian may prescribe antibiotics, anti‑inflammatory drugs, or conduct diagnostics (blood work, radiographs) to identify underlying infection or organ dysfunction.
Finally, after stabilization, gradually reduce supplemental heat, reintroduce a standard diet, and continue monitoring for at least 48 hours to ensure full recovery. Maintain cage cleanliness and minimize stress to prevent recurrence.