🏠 Study Hub 🖼️ Infographics
NG-356

☠️ Poisoning & Lead Exposure

What to do first, what never to induce, and why lead damages the nervous system silently.

🚨 Acute poisoning — the first actions

The first five actions in order, then the two reasons vomiting is never induced drawn out - a caustic burning the esophagus a second time on the way back up, and a petroleum product going down the airway instead.
The two reasons never to induce vomiting are different reasons, and drawing them keeps them apart. Swipe it sideways if it is cut off, or tap to open it full size.

Toddlers explore by mouth, so poisoning peaks around age 2.

1Assess the child — ABC first
2Remove any remaining substance from the mouth
3Call Poison Control — before giving anything
4Take the container with you to hospital
5Treat as directed — activated charcoal, antidote, supportive care

🚨 The absolute nevers

  • Never induce vomiting. Syrup of ipecac is no longer recommended.
  • Never induce vomiting with a caustic substance - lye, drain cleaner, oven cleaner. It burns the esophagus a second time on the way back up.
  • Never induce vomiting with a petroleum product - petrol, paraffin, furniture polish. Aspiration causes chemical pneumonitis.

Take the container. Identifying the substance and its concentration changes the treatment entirely, and a frightened parent’s description is often wrong.

SubstanceAntidote / treatment
Acetaminophen (acetaminophen)N-acetylcysteine — most effective within 8 hours
OpioidsNaloxone
IronDeferoxamine; iron tablets look like candy and are a classic pediatric poisoning
BenzodiazepinesFlumazenil (used cautiously)
OrganophosphatesAtropine; look for SLUDGE and pinpoint pupils

✅ Prevention teaching

  • Locked cupboards, high shelves — child-resistant is not child-proof
  • Keep everything in its original container — never in a drinks bottle
  • Do not call medicine “candy” to get a child to take it
  • Handbags and visitors’ bags are a common source — tablets in a pocket
  • Poison Control number saved in the phone and on the fridge

🧲 Lead exposure

Lead damages the developing nervous system, and it does it silently. Most children with raised levels have no symptoms at all — which is why screening exists.

The commonest source is deteriorating lead paint in housing built before 1978 - chips and, more importantly, the dust.

🧠 Where it comes from

  • Old paint — chips, and dust from friction on windows and doors
  • Contaminated soil near old buildings or busy roads
  • Old plumbing — run the tap and use cold water for drinking and formula
  • Imported pottery, cosmetics, some traditional remedies, some toys
  • A parent’s work or hobby — brought home on clothing

Pica — eating non-food items — raises the risk considerably.

When there are symptoms 
NeurologicalIrritability, poor attention, developmental delay or regression, learning problems
GIAbdominal pain, vomiting, constipation, poor appetite
BloodMicrocytic anemia — lead interferes with hem production
SevereSeizures, altered consciousness, encephalopathy

✅ Management

  • Find and remove the source — this is the definitive treatment; treating the child while they return to the same house achieves nothing
  • Chelation for high levels — succimer, EDTA, dimercaprol. Ensure good hydration and monitor renal function
  • Iron and calcium-rich diet — a well-nourished gut absorbs less lead. Deficiency increases absorption
  • Frequent wet mopping and damp dusting; wash hands and toys often
  • Developmental follow-up — effects can appear later as school difficulties

There is no known safe blood lead level. Prevention is the only reliable protection.

🎯 NCLEX traps

  • Never induce vomiting — especially caustics and petroleum products
  • Take the container to hospital
  • Call Poison Control before giving anything
  • Acetaminophen antidote is N-acetylcysteine
  • Lead is usually asymptomatic — screening finds it
  • Remove the source; good iron and calcium reduce absorption
Sources. Written from CDC, NIDCD, National Eye Institute, HealthyChildren.org (AAP) and MedlinePlus.