Nitrous oxide
別名: Entonox, Laughing gas
Nitrous oxide (often called 'laughing gas') is a safe and commonly used gas that veterinarians use alongside oxygen and other anesthetics to keep your pet asleep and pain-free during surgery. It helps the main anesthetic work faster and allows the veterinarian to use lower doses of other drugs. It leaves the body very quickly once the procedure is over, allowing for a smooth recovery.
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
用途
- Adjunct for induction and maintenance of anaesthesia
- Adjunct for induction and maintenance of anaesthesia
給藥方式
可能的副作用
- Diffusion hypoxia (if oxygen is not supplemented upon discontinuation)
- Megaloblastic changes in bone marrow (with exposure lasting a few hours)
- Agranulocytosis (with prolonged exposure of a few days)
注意事項與禁忌
- Patients with air-filled spaces within the body (e.g., pneumothorax, gastric dilatation/GDV, intestinal obstruction)
- Marked respiratory compromise (due to hypoxia risks)
- Raised intracranial pressure (due to associated increases in cerebral blood flow)
- **Human Safety & Scavenging:** Prolonged exposure can have serious adverse effects on human health. Active scavenging is essential. > **Important:** N2O is **not** absorbed by activated charcoal in passive scavenging systems. **Hypoxia Risk:** A minimum oxygen concentration of 30% is required during anaesthesia. The inspired concentration of oxygen may fall to critically low levels when N2O is used in rebreathing circuits during low flow rates. Do not use in such systems unless the inspired oxygen concentration can be measured on a breath-by-breath basis. **Diffusion Hypoxia:** Always supplement with 100% oxygen for 5-10 minutes after turning off N2O.
常見問題
Nitrous oxide用於寵物有甚麼用途？
Nitrous oxide (often called 'laughing gas') is a safe and commonly used gas that veterinarians use alongside oxygen and other anesthetics to keep your pet asleep and pain-free during surgery. It helps the main anesthetic work faster and allows the veterinarian to use lower doses of other drugs. It leaves the body very quickly once the procedure is over, allowing for a smooth recovery.
Nitrous oxide對我的寵物安全嗎？
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
本文僅供一般健康教育，不能取代專業獸醫意見。如寵物身體不適，請諮詢獸醫。