南天竹

貓咪可能出現的症狀

由嚴重到輕微排列。

1. 1
   癲癇、震顫、共濟失調（協調能力喪失）或昏迷 10–60 分鐘。 · The brain is highly sensitive to oxygen deprivation. As cellular hypoxia sets in, the cat may suffer convulsions or collapse into a coma.
2. 2
   低血壓、心律不整和突然虛脫 10–60 分鐘。 · The toxin causes a drop in blood pressure and irregular heart rhythm, which often leads to sudden death before veterinary treatment can even be initiated.
3. 3
   呼吸急促、呼吸困難或過度換氣 進展快速，可能在攝入後 10–60 分鐘。 · Cyanide prevents the body's cells from utilizing oxygen (cellular hypoxia). The cat breathes rapidly in a desperate attempt to compensate for this lack of usable oxygen.
4. 4
   鮮紅色的牙齦/黏膜 10–60 分鐘。 · This is a classic hallmark of cyanide poisoning. Because the cells cannot absorb oxygen from the blood, the venous blood remains oxygenated and bright red (cherry red), causing the gums to appear unusually brick red rather than pale or blue (cyanotic), although cyanosis can occur in later stages.
5. 5
   嘔吐和腹瀉 10–60 分鐘。 · These are often the first signs observed. While less immediately fatal than the respiratory or cardiac effects, they indicate that the toxin has been ingested.
6. 6
   呼吸中帶有「苦杏仁」味 急性。 · A distinct smell of bitter almonds may be detected on the cat's breath, which is a specific indicator of cyanide toxicity.

重要提醒

南天竹（Nandina domestica）是帶有紅色果實的觀賞灌木。雖然名字內有竹，但它不是真正的竹子，而且對貓有毒。 這種植物含有氰苷，果實中的含量尤其需要注意。這些成分被分解時，可能釋放氰化氫，干擾身體使用氧氣的能力。鮮紅色果實可能吸引鳥類和寵物。 貓吃到南天竹後，可能嘔吐、腹瀉、虛弱、呼吸比平常快；嚴重時可能昏倒。請把果實和修剪下來的枝葉遠離貓。如果貓吃到果實，或出現虛弱、呼吸改變，請立即聯絡獸醫。

• 毒性化合物：果實濃度最高
• 機制：攝入後氰原化合物產生氰化氫 (HCN)，抑制細胞色素 c 氧化酶並停止細胞呼吸
• 症狀：嘔吐、嗜睡、虛弱、呼吸困難；嚴重攝入可能導致抽搐和虛脫
• 誘人的紅色果實對好奇的貓構成了最大的風險，如果懷疑攝入果實，請立即尋求獸醫護理；HCN 毒性進展迅速