Why is it risky?
Lead is a cumulative neurotoxin and nephrotoxin with no safe threshold. Feline exposure occurs through paint chips in pre-1970s buildings, lead-containing plumbing, fishing sinkers, old glazed ceramics, and imported toys or decorations. Lead disrupts heme synthesis (causing anemia), damages the nervous system (encephalopathy), and injures the kidneys. Cats in older buildings undergoing renovation are at particular risk from disturbed lead-based paint dust.
Affected Systems
Nervous · Kidneys · Cardiovascular
Symptoms
Lethargy, vomiting, anorexia, ataxia, blindness, seizures. Chronic low-level exposure: subtle neurological signs, weight loss, poor coat condition, anemia.
What To Do
Emergency vet for suspected acute exposure. Blood lead level testing is diagnostic. Chelation therapy (DMSA, CaEDTA) reduces body lead burden. Remove the exposure source.
Notes
Risk is highest during renovation of pre-1970s buildings, cats should be relocated during lead paint disturbance work. Test old paint before renovation. Avoid: lead fishing sinkers (opt for tungsten or steel alternatives), glazed ceramic bowls of unknown origin as food dishes, toys and jewelry from regions with lax lead regulations.
Sources
→ ASPCA Animal Poison Control Center — aspca.org
→ Merck Veterinary Manual — merckvetmanual.com
→ Pet Poison Helpline — petpoisonhelpline.com/poison/lead/