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Zinc Poisoning
Zinc toxicity in pets most commonly occurs from ingesting pennies (US pennies minted after 1982 are 97.5% zinc), zinc nuts/bolts, or zinc-containing creams.
Key Facts
- US pennies (post-1982) are the most common source
- Zinc dissolves in stomach acid and is rapidly absorbed
- Causes hemolytic anemia (destruction of red blood cells), organ damage
- Signs: vomiting, diarrhea, orange/dark urine, lethargy, pale gums, jaundice
- Diagnosis: X-ray showing metallic object in stomach + blood zinc level
- Treatment: endoscopic or surgical removal of zinc source + supportive care + blood transfusion if needed
- Species: dogs (primarily; cats less likely to swallow foreign objects)