Nüchternheit vor der Operation bei Haustiere: Richtlinien, Ausnahmen und warum es wichtig ist

Standard protocol: Withhold food for ≥12 hours and water for ≥2–4 hours before anesthesia. This minimizes the risk of aspiration pneumonia—stomach contents entering the lungs during induction or recovery, which can be fatal.

Why Fasting Matters

• Anesthetic drugs relax the gastroesophageal sphincter and suppress the swallowing reflex.
• Regurgitation under anesthesia → aspiration → chemical pneumonitis, bacterial pneumonia, hypoxia, death.

Common Exceptions (Veterinarian Discretion Only)

• Diabetic patients – May receive a small meal (¼–½ normal) 6–8 hours pre-op with insulin adjustment to prevent hypoglycemia.
• Very young/pediatric patients – Shorter fasts (4–6 hours) to prevent hypoglycemia.
• Specific breeds/conditions – Some brachycephalic or GI motility cases may have modified protocols.

Never adjust fasting on your own. Your veterinary team will provide written, patient-specific instructions. Follow them precisely—your pet’s safety depends on it.