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ANIMAL BITES AND
WOUNDS
Prepared by:
Mia Lyn Acedera
ANIMAL BITES…
What Are They?
Inmostcasesinvolvechildren
thanadultstobeinjuredbyan
animalbite.
Theanimalsthatmaybiteinclude
dogs,cats,rodents,rabbits,
ferrets,farmanimals,monkeys
andreptiles.
Thosebitescancausepainand
otherproblems,lifethreatening
issuesespeciallywhenthey
becomeinfectedinsidethebody
andbloodcirculation.
What is an Animal
Bites?
➢Ananimalbiteisawound,causedbythe
teethusuallyresultsinabreakintheskindue
totheexcessivepressureonbodytissuefrom
thebite.
➢Italsoinvolvesthecontusionswhichcan
occurwithoutabreakintheskin.Bitescanbe
provokedorunprovoked.Animalbitesmostly
causeaseriousinfectionsandevendeath.
➢Italsoincludesinjuriesnotonlyfromthe
teethofreptiles,mammalsbutfishand
amphibians.
➢Arthropodscanalsobiteandleaveinjuries.
Catandhumanbitescancarryahigherriskof
infection.
❑Ifthebittenanimalhasanidentifiableowner,askwhetheritis
vaccinatedcurrentlyagainstrabies.
❑Ifitisastrangeanimal,callthepoliceornearestanimalcareteam.
What Causes Animal Bites?
ThemostcommoncauseofbitesarePets.Someoftheanimalsthataremorelikelyto
biteare.
❑DOGBITES
➢Dogsareusuallythedomesticpetsto
causeanimalbites.Rabiesviruscan
becausedbydogbite.
DOG BITE
Rabiesisadeadlyvirusspreadtopeoplefromthe
salivaofinfectedanimals.Therabiesvirusis
usuallytransmittedthroughabite.
CAT BITE
❑CATBITES
➢This bites can be dangerous both to other animals and to humans because cats carry
bacteria in their mouths that are capable ofcausing tissue infectionsin bite wounds.
❑MONKEY BITES
➢Somethestudiesfoundmonkey
bitesaccountfor2–21%ofanimal
biteinjuries.
✓Crushinginjuries
✓Infectionbybacteriaincludingrabies
✓Introductionoftoxinsintothewoundbyvenomousanimalssuchassomesnakes.
✓Introductionofotherforeignobjectsintothewound,causinginflammationand
itching.
ANIMAL BITES RISK FACTORS
Risk factors that increase the chances of
a bite turning into an infection
include the following:
✓Not thoroughly and swiftly washing the
bite
✓The bite caused a deep wound
✓The bite also caused a fracture or
other damage
✓A weakened immune system
ANIMAL BITES COMPLICATIONS
Themaincomplicationthatarisesis
fromanimalbitesandabitefrom
humansisInfection:
✓InfectionsmainlyTetanusandRabies
✓Bloodpoisoning(sepsis)
✓Swellingandstiffeningofthejoints
✓Tissuedamage
WOUNDS
Q. What is a wound?
Awoundis a type ofinjurywhich happens
relatively quickly in whichskinis torn, cut,
or punctured (anopenwound), or where
blunt forcetraumacauses acontusion
(aclosedwound).
Inpathology
-itspecificallyreferstoasharpinjurywhich
damagestheepidermisoftheskin.
What causes wound?
➢Wounds can be caused by something
sudden, such as a cut, a burn, a fall or a
bad knock.
➢People often have a wound
aftersurgery.
➢Wounds can be caused byinfections,
such as infectionsaftersurgeryand
infectionsin insect bites.
➢Wounds can be caused by being
immobile, such as bed sores or pressure
injuries.
THE TWO MAJOR CLASSIFICATION OF WOUNDS ARE THE OPEN AND CLOSED.
OPENWOUNDS-isaninjuryinvolvinganexternalorinternalbreakinbodytissue,usually
involvingtheskin.
CLOSEDWOUNDS-arethosewheretheskinisnotbroken.
OPEN WOUND
CLOSED WOUND
OPEN WOUNDS CAN BE CLASSIFIED
ACCORDING TO THE OBJECT THAT
CAUSED THE WOUND:
❑INCISIONS OR INCISED WOUNDS
–caused by a clean, sharp-edged object such as
aknife,razor, or glass splinter.
INCISIONS WOUND
❑LACERATIONS
➢irregular tear-like wounds caused by
someblunt trauma. Lacerations and
incisions may appear linear (regular) or
stellate(irregular).
➢The termlacerationis commonly
misused in reference to incisions.
LACERATIONS WOUND
❑ABRASIONS(GRAZES)
➢superficialwoundsinwhichthe
topmostlayeroftheskin(the
epidermis)isscrapedoff.
➢Abrasionsareoftencausedbya
slidingfallontoaroughsurfacesuch
asasphalt,treebarkorconcrete
❑AVULSIONS
➢injuries in which a body structure is
forcibly detached from its normal
point of insertion.
➢A type ofamputation where the
extremity is pulled off rather than cut
off.
❑PUNCTURE WOUNDS
➢causedbyanobjectpuncturing
theskin,suchasasplinter,nail
orneedle.
AVULSIONS
PUNCTURE
WOUNDS
❑PENETRATION WOUNDS
➢caused by an object such as a knife entering
and coming out from the skin.
PENETRATION
WOUNDS
❑GUNSHOT WOUNDS–caused by
abulletor similar projectile driving into
or through the body.
➢There may be two wounds, one at the
site of entry and one at the site of exit,
generally referred to as a "through-
and-through."
GUNSHOT WOUND
Closed wounds have fewer categories, but are just
as dangerous as open wounds:
Hematomas(or blood tumor) –caused by damage
to ablood vessel that in turn causesblood to collect
under theskin.
The different classifications are based on size.
➢Hematomas that originate from an external
source of trauma arecontusions, also
commonly called bruises.
CLOSED WOUNDS
HEMATOMAS
COMPLICATIONS
➢Thepatienthasadeepwoundattheknee,andradiographyisusedtoensurethereareno
hiddenbonefractures.
➢Bacterialinfectionofwoundcanimpedethehealingprocessandleadtolife-threatening
complications.
WORKUP
➢Woundsthatarenothealingshouldbeinvestigatedtofindthecauses;manymicrobiological
agentsmayberesponsible.
➢Thebasicworkupincludesevaluatingthewound,itsextentandseverity.Culturesareusually
obtainedbothfromthewoundsiteandblood.
➢X-raysareobtainedandatetanusshotmaybeadministeredifthereisanydoubtaboutprior
vaccination.
CHRONIC
➢Non-healingwoundsofthediabeticfootareconsideredoneofthemostsignificant
complicationsofdiabetes,representingamajorworldwidemedical,social,andeconomic
burdenthatgreatlyaffectspatientqualityoflife.
➢Associatedwithinadequatecirculation,poorlyfunctioningveins,andimmobility,non-healing
woundsoccurmostfrequentlyintheelderlyandinpeoplewithdiabetes.
PATHOPHYSIOLOGY
➢Toheala wound, the body undertakes a series of actions collectively known as thewound healing
process.
CLEANING
➢Evidence to support the cleaning of wounds before closure is scant.
➢For simple lacerations, cleaning can be accomplished using a number of
different solutions, includingtap water andsterile saline solution .
➢Infection rates may be lower with the use of tap water in regions where
water quality is high.
➢Cleaning of a wound is also known as 'wound toilet'.It is not clear if
delaying a shower following a surgery helps reduce complications related to
wound healing.
REFERENCES:
❑AnimalBites–CausesSymptomsTreatmentandCare
TheBestHealthOrganizations
Linktothefile:
http://www.thebesthealth.org/animal-bites-causes-treatment-care/
❑Pediatrics, American Academy of (2011).First Aid for Families. Jones & Bartlett.
p.39.ISBN978-0763755522.
❑^"Light to detect wound infection"(web).UK scientists have identified a way of using light to
rapidly detect the presence of bacteria. BBC News. 11 March 2007.Archivedfrom the original
on 22 August 2007. Retrieved17 March2008.
❑^Work UpArchived31 January 2010 at theWaybackMachineMedicine General Surgery.
Retrieved 27 January 2010
❑THE WOUNDS
Link to the file:
https://en.wikipedia.org/wiki/Wound#cite_ref-1