Common Winter Hazards
This list was compiled by Animal 911 Veterinary Emergency Clinic based
on frequent phone calls.

3735 W Dempster, Skokie, Illinois 60076
847-673-9110
Hours: Monday -Friday 5 p.m. - 8 a.m.
Noon Saturday 8 a.m. Monday
All Major Holidays
ANTIFREEZE
Causes kidney
failure. Those containing ethylene glycol are very potable and readily
ingested from leaking radiators and puddles, especially by outdoor cats
and dogs. Early signs may included animal "acting drunk." Otherwise, no
signs are apparent until after 12 hours post-ingestion when animal may
appear collapsed from the effects of irreversible kidney failure.
Sierra antifreeze contains propylene glycol and is less toxic than
regular antifreeze but can still cause problems, especially if large
quantities are ingested.
CARBON MONOXIDE
Leaky vents and
furnaces will cause fatalities in pets as well as humans. Check
routinely.
FROSTBITE
Prolonged expsoure
to freezing temperatures affects animals just like people. Even short
exposures to sub-zero cold can produce frostbite of feet, nose and ear
tips. Provide warm, enclosed shelter for animals housed outdoors. Wipe
snow/ice off feet from toe webs fo pets' paws after walks for outdoor
activity.
ROCK SALT
Lime rock salt and
calcium chloride salts can produce vomiting and diarrhea as well as
severe dehydration if a large quantity is ingested. Store in enclosed
containers and wipe off feet of pets afer walks.
RODENTICIDES
(Mouse or rat
poison) As cold weather sets in, many furry friends move inside and
poison and bait is set out. Can cause fatal internal bleeding or kidney
failure depending on type. Effects may not pe apparent until it is too
late. Signs occur 2-14 days after ingestion. Most common rodenticides
cause hemorrhage by blocking Vitamin K which is necessary for blood
clotting. Signs include bruising of the skin, pale gums, coughing up
blood, blood in urine or stool. An animal may bleed to death if
untreated. Rampage rodenticides cause irreversible kidney failure and
unlike anticoagulant rodenticides metioned, there is no antidote.
Always make sure rodenticide baits are placed in areas where pets
cannot get to them. Contact your local veterinarian or emergency clinic
if you even suspect exposure, as animals will often appear normal until
it is too late to treat them successfully.
POINSETTIA
Contrary to
popular belief, the hybrid varieties of this plant which are used
exclusively here are not toxic. Ingestion of leaves can produce some
mild vomiting and diarrhea.
PLANTS
Please see list
below for specific toxic and non-toxic plants. Call your local
veterinarian or emergency clininc if any suspected toxic plant is
ingested or if you are in doubt.
Non-Toxic (May cause vomiting or diarrhea if large
quantity eaten)
- Bayberry
- Christmas
Begonia
- Christmas Cactus
- Christmas Cheers
- Christmas
Dagger Fern
- Christmas
Flower (Poinsettia)
- Christmas
Kalanchoe
- Orchids
- Orchids
- Poinsettia
- Winter Begonia
Toxic
- Amaryllis- Bulb
is toxic. Leave +/-.
- Boxberry-
Leaves and stems toxic.
- Christmas
Berry- Leaves toxic.
- Christmas
Cherry- Leaves and fruit toxic. Unripened berries very toxic.
- Christmas
Pepper- Leaves and fruit toxic. Unripened berries very toxic.
- Christmas Rose-
All parts toxic.
- Chrysanthemum-
All parts toxic.
- Holly- Leave
toxic. Berries very toxic.
- Jerusalem
Cherry- Leaves and fruit toxic. Unripened berries very toxic.
- Mistletoe- All
parts toxic, especially berries. MOST DEADLY HOLIDAY PLANT.
- Rhododenron/Azalea-
All parts toxic.
- Winter Broom-
Leaves toxic.
PROLONG
Christmas tree
preservative- Non-toxic major ingredient is glucose (sugar). Mild
vomiting or diarrhea may occur.
SNOW SPRAY
Artificial snow
spray used on trees and other objects- Inert plastic material is
non-toxic as is the propellant when dry. Obviously, do not spray near
pets' faces or eyes.
WRAPPING PAPER
AND RIBBONS
Risk of
gastrointestinal blockage if ingested. Ribbons and string are most
likely to cause problems in cats. Don't use as a "toy" for your pets
and be careful if wrapped presents are left under a tree.