The Big Picture
Adults are commonly poisoned by contaminated food or water or by taking too much medication.
Young children face extra risk because they explore their surroundings and often put things in their mouths. Prevention focuses on identifying dangerous substances, storing them safely, and knowing what to do when poisoning is suspected.
Look for Nova Scotia CCA Notes throughout this page for current provincial guidance.
Quick tip: Tap, click, or press Enter on any term with a dotted underline and an ⓘ icon to see its plain-English definition.
Start Here If You’re Overwhelmed
Focus on these core ideas:
- Adults are commonly poisoned by contaminated food or water and medication overdoses.
- Accidental poisoning is most common in children from 1 to 4 years of age.
- Poisoning can happen by swallowing a substance or when some poisonous substances are absorbed through the skin.
- Lock medicines and harmful substances away. Do not depend on childproof lids alone.
- If you suspect poisoning, first call 9-1-1, then gather evidence and stay with the client.
- Keep medicines, pesticides, and detergents in their original containers, and never put poisonous or toxic products into containers that once held food.
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Course Notes: Key Ideas You Need to Know
How Adults May Be Poisoned
Two common causes of poisoning in adults are:
- eating or drinking contaminated food or water
- taking too much medication
Accidental medication overdose may happen because of carelessness, confusion, or difficulty reading medication labels.
A confused or disoriented adult may also eat a poisonous substance. Poisoning sometimes occurs during a suicide attempt.
Common Harmful Substances
Many everyday products can cause poisoning. Important examples include:
- medications and vitamins
- household cleaners
- personal care products
- houseplants
- insecticides, fertilizers, and insect sprays
- alcohol and tobacco products, including nicotine gum, patches, and sprays
Household cleaners include products such as bleach, drain cleaner, floor wax, furniture polish, soaps, detergents, and toilet, window, and oven cleaners.
Personal care products include items such as rubbing alcohol, nail polish and remover, cosmetics, perfumes, mouthwash, bath products, shampoos, conditioners, and baby care products.
Hazardous Material
A hazardous material is a substance that presents a physical hazard or a health hazard in the workplace.
Why Young Children Face a Higher Risk
Young children naturally explore their surroundings by putting things in their mouths.
Accidental poisoning occurs most often in children between 1 and 4 years old. Children at this age are crawling or walking and exploring their environment.
Examples of substances children may swallow include:
- aspirin
- cigarette butts
- vitamin pills
Poisoning does not always happen by swallowing something. Certain poisonous substances, such as oven cleaner or pesticide, can spill onto the skin and be absorbed into the body.
Preventing Accidental Poisoning
Parents, guardians, and caregivers can prevent many poisonings by identifying toxic materials and locking them away.
The same poisoning-prevention safety measures used for children should also be followed for adults.
Choose and Store Household Products Carefully
Read household-product labels before buying a product. Try to choose products considered less toxic when possible.
Examples listed as generally less hazardous include:
- nonchlorine bleach
- vinegar
- borax
- beeswax
- mineral oil
- compressed-air drain openers instead of corrosive liquids
Lock all medicines and harmful substances away. Secure cupboards that contain poisonous products, even when the cupboards seem too high for a child to reach.
Do Not Depend on Childproof Lids
Childproof lids do not guarantee that a child will stay out of a container.
A young child may still manage to open a container that adults consider secure. Safe storage still matters.
Keep Products in Their Original Containers
Keep medicines, pesticides, and detergents in their original containers.
If a label becomes difficult to read, rewrite the label so the contents remain clearly identified.
Never place poisonous or toxic products into containers that once held food. Someone may mistake the contents for something safe to eat or drink.
Do Not Present Medicine as Food or Candy
Never call medicine “sweets” when speaking to a child.
Children learn through imitation. When taking your own medication, make sure children are not watching.
Protect Children From Old, Flaking Paint
Do not let children play with chipped or flaking paint.
Old paint contains lead. Lead is toxic and can cause neurological damage in children.
Remove all chipped paint. Advice about removing lead paint should come from the local poison control centre or a reputable paint store.
Toxic Materials Found in the Home
Household Cleaning Products
Treat household cleaning products as dangerous.
Keep them out of reach of children and disoriented adults. Examples include:
- drain cleaner
- oven cleaner
- toilet cleaner
- dishwasher detergent
- rust remover
A person does not need to swallow a cleaning product to be harmed. Someone may spray the product onto the eyes or skin and suffer burns.
Pills, Medicines, and Vitamins
Assume that medicine taken by a child or disoriented client may be dangerous, whether it was prescribed for that person or not.
Vitamin supplements can be fatal in large doses, so they should stay locked in a cupboard.
Some prescription drugs have a cumulative effect, especially antidepressants and time-release drugs. Travel medicines can also be dangerous and should remain inside a locked medicine cabinet.
Cosmetics
Lock cosmetics in the medicine cabinet.
Even common products, such as hair remover, can be dangerous when swallowed.
Household and Garden Plants
Some household and garden plants are poisonous.
Examples include:
- philodendron
- rue
- privet
- laurel berries
- yew berries
- laburnum seeds
Caregivers should know the names of plants and trees inside and outside the home. Leaving nursery tags on plants helps with identification. A plant-nursery expert can also help identify a plant and provide labels.
Garage and Workshop Products
Keep paint thinner, paint remover, gasoline, paraffin, and metal polishes locked out of reach in the garage.
Do not allow children or disoriented clients into a workshop without supervision.
Pesticides
Lock pesticides away.
Products promoted as friendlier replacements for pesticides can also make people and pets ill.
Signs That Poisoning May Have Occurred
You may suspect poisoning when you find evidence such as:
- empty pill bottles
- hazardous products lying around
A sudden change in the client can also raise concern. Examples include:
- sudden collapse
- vomiting
- difficulty breathing
In a community setting, keep the local poison control centre number posted near the telephone, programmed into a cell phone, or carried in a bag.
What to Do if You Suspect Poisoning
Follow the steps in this order:
- Call 9-1-1. Contact emergency medical services for your area. Follow the instructions given by the EMS operator.
- Gather evidence. Collect empty pill bottles or other evidence that may help determine what was swallowed and how much.
- Stay with the client. Remain with the client and stay calm.
Nova Scotia CCA Note
Sorrentino’s Canadian Textbook for the Support Worker, 5th Edition teaches calling 9-1-1 first whenever poisoning is suspected. In Nova Scotia, current Atlantic Canada Poison Centre guidance is more specific.
Call 9-1-1 immediately if the person is unconscious, having a seizure, or having trouble breathing or swallowing. For other real or suspected poisonings, call the Atlantic Canada Poison Centre at 1-844-POISON-X (1-844-764-7669) and follow its instructions. (atlanticcanadapoisoncentre.ca)
Why this matters in Nova Scotia: This helps you separate poison emergencies that need immediate 9-1-1 from other poison exposures that should be discussed with the Poison Centre.
Official source: First Aid for Poisonings, Atlantic Canada Poison Centre
Last checked: September 13, 2026
Exam Clue Words
- First: When poisoning is suspected, the first step is to call 9-1-1 and follow the EMS operator’s instructions.
- Never: Never place poisonous or toxic products in containers that once held food.
- Do not rely on: Childproof lids do not replace secure storage.
- Stay with: After contacting EMS and gathering evidence, remain with the client and stay calm.
Common Mix-Ups
| Wrong Idea | Better Idea |
|---|---|
| Childproof lids make harmful products safe. | Children may still open them, so harmful substances must stay secured. |
| Poisoning only happens when something is swallowed. | Some poisonous substances can be absorbed through the skin. |
| Any container is acceptable if you remember what is inside. | Medicines, pesticides, and detergents should stay in their original containers. |
| Gathering pill bottles comes before calling for help. | Call 9-1-1 first, then gather evidence. |
| Household products only matter when swallowed. | Some products can also burn the eyes or skin. |
Fast Review
Use these points for a quick review before a quiz or exam.
- Common adult poisoning causes include contaminated food or water and medication overdose.
- Carelessness, confusion, and difficulty reading medication labels can contribute to accidental overdose.
- Accidental poisoning is most common in children from 1 to 4 years old.
- Poisoning can happen through swallowing or through skin absorption of certain poisonous substances.
- Lock medicines and harmful products away. Childproof lids alone are not enough.
- Keep medicines, pesticides, and detergents in their original containers.
- Never place poisonous substances into containers that once held food.
- Empty pill bottles, hazardous products, sudden collapse, vomiting, or difficulty breathing may suggest poisoning.
- When poisoning is suspected, call 9-1-1 first.
- After calling EMS, gather evidence that may show what was swallowed and how much.
- Stay with the client and remain calm.
Final Pep Talk
There are a lot of products and prevention rules in this topic, so focus first on the patterns. Know who is at higher risk, how poisoning may happen, and the three response steps in the correct order.