What should you do if a rat’s temperature rises? - briefly
Use a rectal thermometer to confirm fever; if the temperature exceeds 102 °F (38.9 °C), contact a veterinarian, keep the rat warm and quiet, and ensure it has easy access to water.
What should you do if a rat’s temperature rises? - in detail
When a rodent shows an elevated body temperature, immediate action is essential to prevent serious complications.
First, confirm the fever by measuring rectal temperature with a calibrated thermometer. Normal rat temperature ranges from 37 °C to 39 °C; readings above 40 °C indicate a problem.
Next, isolate the affected animal from the colony to reduce stress and limit potential spread of infectious agents. Provide a quiet, temperature‑controlled enclosure: maintain ambient temperature around 22 °C and avoid drafts.
Supportive care includes:
- Hydration: Offer fresh water and a moist diet (e.g., softened pellets or banana mash). If the rat refuses to drink, administer subcutaneous sterile saline (10 ml/kg) using a fine‑gauge needle.
- Nutrition: Provide easily digestible, high‑energy foods such as cooked egg whites or commercial recovery formula.
- Temperature regulation: Apply a cool, damp cloth to the paws and ears for a few minutes, then monitor closely. Do not use ice or extreme cold, which can cause vasoconstriction and worsening hypothermia after the fever subsides.
Observe the animal continuously for additional signs: lethargy, labored breathing, nasal discharge, or abnormal behavior. Record temperature trends every 2–4 hours.
If the fever persists beyond 24 hours, rises rapidly, or is accompanied by other clinical signs, contact a veterinarian experienced with small mammals. The clinician may prescribe antipyretics (e.g., acetaminophen is toxic to rodents; appropriate alternatives include meloxicam) and order diagnostic tests such as blood work, culture, or imaging to identify underlying infections, inflammation, or organ dysfunction.
After veterinary intervention, follow the prescribed medication schedule precisely, maintain a clean cage, and monitor for relapse. Once the rat returns to normal temperature and activity levels for several days, re‑introduce it to the group gradually, observing for any adverse reactions.
Prompt detection, isolation, supportive measures, and professional veterinary care together maximize the chances of recovery from a febrile episode in rats.