Ch. 23-Bites and StingsMost poisonous snakes have the following characteristics:Slide 3Severity of SnakebiteSigns and Symptoms of SnakebiteVocabularyPROGRESS CHECKInsect Bites and StingsBlack widow spider bites cause:Slide 10Slide 11Anaphylactic ShockSlide 13Slide 14First Aid for Bites and StingsFirst Aid Care for SnakebiteSlide 17First Aid Care for Marine Life PoisoningRemoving a TickSlide 2011Ch. 23-Bites and StingsCh. 23-Bites and Stings22Most poisonous snakes have the Most poisonous snakes have the following characteristics:following characteristics:Large fangsLarge fangsVertical slits for pupils, much like those of a Vertical slits for pupils, much like those of a catcatA heat-sensitive pit between the eye and the A heat-sensitive pit between the eye and the nostril on each side of the headnostril on each side of the headA variety of differently shaped blotches on a A variety of differently shaped blotches on a background of pink, yellow, olive, tan, gray, background of pink, yellow, olive, tan, gray, or brown skinor brown skinThe triangular head is larger than the neck The triangular head is larger than the neck3344Severity of SnakebiteSeverity of SnakebiteThe location of the bite (fatty tissue absorbs The location of the bite (fatty tissue absorbs the venom more slowly than muscle tissue)the venom more slowly than muscle tissue)Whether disease-causing organisms are in Whether disease-causing organisms are in the venomthe venomThe size and weight of the victimThe size and weight of the victimThe general health and condition of the The general health and condition of the victimvictimHow much physical activity the victim How much physical activity the victim engaged in immediately following the bite engaged in immediately following the bite (physical activity helps spread venom)(physical activity helps spread venom)55Signs and Symptoms of SnakebiteSigns and Symptoms of SnakebiteTwo distinct fang marks about half an inch apart at Two distinct fang marks about half an inch apart at the bite site, which may or may not bleed (in some the bite site, which may or may not bleed (in some cases there may be only one fang mark)cases there may be only one fang mark)Immediate and severe burning pain and swelling Immediate and severe burning pain and swelling around the fang marks, usually within 5 minutes but around the fang marks, usually within 5 minutes but sometimes taking as long as 4 hours to develop sometimes taking as long as 4 hours to develop (swelling may affect the entire arm or leg)(swelling may affect the entire arm or leg)Purplish discoloration and blood-filled blisters around Purplish discoloration and blood-filled blisters around the bite, usually within 2 to 10 hours the bite, usually within 2 to 10 hours Numbness around the biteNumbness around the bite66VocabularyVocabularyCoral snake-Coral snake- A type of poisonous snake that does A type of poisonous snake that does not have a pit or fangsnot have a pit or fangsElliptical pupils-Elliptical pupils- Pupils that are vertical slits, like Pupils that are vertical slits, like those of a catthose of a catPit viper-Pit viper- A type of poisonous snake, such as a A type of poisonous snake, such as a rattlesnake, characterized by a pit between the eyes rattlesnake, characterized by a pit between the eyes and nostriland nostril77PROGRESS CHECKPROGRESS CHECK1. Most poisonous snakes have ____________. 1. Most poisonous snakes have ____________. (large fangs/small, (large fangs/small, irregular fangs/rows of small teeth)irregular fangs/rows of small teeth)2. The pupils of most poisonous snakes are ____________.2. The pupils of most poisonous snakes are ____________.(round/elliptical/oval)(round/elliptical/oval)3. Pit vipers are so named because of a pit between the 3. Pit vipers are so named because of a pit between the ____________.____________.(eyes/eye and nostril)(eyes/eye and nostril)4. The poisonous snake that does not share typical characteristics 4. The poisonous snake that does not share typical characteristics of poisonous snakes is the ____________.of poisonous snakes is the ____________.(copperhead/water moccasin/coral snake) (copperhead/water moccasin/coral snake) 5. Pain from a pit viper bite is ____________. 5. Pain from a pit viper bite is ____________. (sharp/burning/dull)(sharp/burning/dull)6. Pain from a coral snake bite is usually __________. 6. Pain from a coral snake bite is usually __________. (absent/sharp/dull)(absent/sharp/dull)7. Signs and symptoms of pit viper bites are generally 7. Signs and symptoms of pit viper bites are generally ____________.____________.(immediate/slightly delayed/delayed by as many as 8 hours)(immediate/slightly delayed/delayed by as many as 8 hours)88Insect Bites and StingsInsect Bites and StingsSigns and Symptoms include:Signs and Symptoms include:A mark from the bite or stingA mark from the bite or stingPain or tenderness at and surrounding the bite or stingPain or tenderness at and surrounding the bite or stingRedness at and surrounding the bite or stingRedness at and surrounding the bite or stingSwelling around the bite or stingSwelling around the bite or stingA venom sac, stinger, tentacle, or other remnant of the A venom sac, stinger, tentacle, or other remnant of the insect at the bite or sting insect at the bite or sting Medical help is necessary if:Medical help is necessary if:Itching lasts longer than 2 days.Itching lasts longer than 2 days.Signs of infection develop.Signs of infection develop.Signs of an allergic reaction develop.Signs of an allergic reaction develop.The insect is poisonous, most often black widow or The insect is poisonous, most often black widow or brown recluse spiders (which can be fatal). brown recluse spiders (which can be fatal).99Black widow spider bites cause:Black widow spider bites cause:Sharp pinprick pain at the site, followed by dull pain Sharp pinprick pain at the site, followed by dull pain in the area of the bite (pain peaks in 2 to 3 hours and in the area of the bite (pain peaks in 2 to 3 hours and lasts 12 to 48 hours)lasts 12 to 48 hours)Small red fang marksSmall red fang marksSevere muscle spasms and rigidity, especially in the Severe muscle spasms and rigidity, especially in the shoulders, back, chest, and abdomen, starting within shoulders, back, chest, and abdomen, starting within 1 to 4 hours of the bite1 to 4 hours of