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competencies
asepsis and wound care module
108
Nursing
Undergraduate 3
09/28/2012

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Term
What did the center of disease control issue in 2007 that revised mandatory regulations in which most of our study guide is taken from
Definition
guidelines for isolation prevention:preventing transmission of infecious agents in healthcare setting
Term
Health-care associated infection
(HAI)
Definition
and infection aquired in the healthcare setting in a previously uninfected patient
Term
Health care associated infections are also called
Definition
noscomial infections
noso- meaning disease
komiean- to take care of
Term
its estimated that --- to ---% of hospital patients experience HAI's and ---- a year; with ---- dying from them a year; about --- of all HAI result from failure to use mandatory prevention control practics such as proper had hygeine
Definition
1/3
Term
what percent of HAI infections are antibiotic resistant
Definition
70%; and 70% are preventabl
Term
community aquired
Definition
if patients aquires infection outside of the hospital ( getting cut by a nail, school infection)
Term
pathogen
Definition
a microorganism capable of causing disease
Term
MANy body tissues , body surfaces and wounds can be colonized without being infected
Definition
true, but if they are colonized they are more likely to be infected
Term
colonization
Definition
proliferaton of microorganisms on or within body sites without detectable host/ or immune responce
Term
Asepsis
Definition
the absence of disease causing agents, our effort to keep the patients free of microbes as possible
Term
medical asepsis
Definition
clean techinique: cleansing ( removal of microbes from an object) , disinfecting (killing pathogens)
Term
three common disinfectants
Definition
isopropyl alcohol, betadine, glutaraldehyde
Term
what did the CDC require in 2007 about surfaces likely to be contaminted with pathogens (surface disinfectants)
Definition
be disinfected by cleaning personal more frequently than other object ; bedrails, door knobs, over tables, toliets
Term
high level disinfectants
Definition
is used for sensative medical equipment used in diagnostic procdures that cant be sterilized because steralizing equipment would damage it; usually only special trained nurses can do this
Term
segregation
Definition
not sharing certan items between patients
Term
cohorting
Definition
locating patients with similar diagnosis are on a hospital unit to prevent spread of their infection to those not infected
Term
what is the most basic and important technique in preventing/ contolling transmission of infection
Definition
hand hygeine
Term
hand hygeine should be done with what unless what
Definition
alcohol based cleanser unless hand are visibly soiled
Term
if hands are visibly soiled makes sure to use
Definition
soap and water, doesnt matter if it is antibacterial or just plain soap
Term
when washing hands
Definition
wet hands before applying soap, so you dont wash soap down the drain before you get lathered up , also undiluted hand can irritate the skin; use warm water cold chaps hands and warm water opens up pores where bacteria can hide; vigorously rub for 15 seconds
Term
7 times to wash hands
Definition
- after eating
- after you take your gloves off
- before and after patient contact
-after any contact with blood, mucous, fluids, non intact skin
-when mving from contaminated to clean site
-when visibly soiled
Term
does lotion help prevent skin irritation which can lead to bacterial growth
Definition
yes
Term
do alcohol- based hand cleansers promote developmental drug resistant organisms
Definition
no, the mechanism in which alcohol kills microbes is different from them becoming resistant
Term
should nurses wear clean or sterile gloves
Definition
clean; when they are at ris for infection
Term
when do we wear gloves
Definition
when nurses have scratches
when inserting needles
when there is a high resk for comming into contact with patient body fluids
Term
what are the 3 things that the CDC requires health care providers to tell their patients about respiratory hygeine/ coughing ediquette
Definition
- to post signs at enteranes and strategic places (elevators, cafeterias), with instructions to patients with respirtory infections to cover their mouth/ nose when sneezing or coughing, to properly dispose tissue, and perform hand hygeine when hands have been in contact with secretion
- provide tissues and non touchable disposals
-post signs on how to properly wash hands, place alcohol dispensers everywhere
Term
you must wear gloves when transporting laboratory specimen containers, and use biohazard containers for transporting laboratory samplestaken from patient
Definition
true
Term
what are the two specific infection precautions in patient care
Definition
tier 1 standard precautions
tier 2 transmission precautions
Term
Tier 1 standard precautions
Definition
based on the assumptions that all patients are potentially infected, so patients are treated as if they were
Term
5 precautions to take if it is considered tier 1
Definition
-handwashing
-gloving when necessary but not for perspiratin
-masks, eye protection, or face shield whenever patients are likely to generate body splashes
- gown - if clothes are likely to be spoiled
-all needles need to go in a non puncture container without recapping after an injection
Term
CDC tier 2 (transmission precautions)
Definition
often called isolation, use when patients are known to hae infection. involves the use of persona protection equipment (PPE),gloves, masks, eye protection, gowns
Term
3 types of tier 2 precautions
Definition
contact
droplet
airborne
Term
contact precautions are used when
Definition
-patients are infected with a multidrug resistant organisms (MDRO's), which are organisms some what impervious to antibiotcs
-also for major wound infections, certain intestinal infections, and all infections caused by highly contagious organisms ( even if they arnt multidrug resistant)
Term
contact precautions require the nurse to
Definition
put on glove and gown before entering the patients room, and discarding them into a biohazard container before stepping out of the door way
Term
what is the only exception to alcohol based waterless cleansers
Definition
when patient has clostridium difficile ( spore forming )
Term
in study what percent of hospital staff have C-diff on their hands
Definition
60%
Term
MRSA
Definition
methicillin - resistant staphylococcus Aureus
Term
in 2006 CDC estimates that were --- MRSA infections ( about -- out of every -- hositalized patient); with -- deaths
Definition
126000
46 out of 1000
5000
Term
can MRSA be normally controlled with standard precautions
Definition
yes
Term
MRSA transmission requires
Definition
close contact
Term
on about --% of all MRSA infections are aquired in the community
Definition
15
Term
often when infected doesnt necessarily mean death but doe require
Definition
weeks to months of intravenous antibiotics
Term
droplet precautions
Definition
droplet nuclei are microscopic particles that are dried residue of evaporated drops produced when a person sneezes, coughs, shouts, radius at about 3 ft and are greater than 5 microns
Term
what are some infections responsible for droplet
Definition
pseudomonas,wooping cough, meningitis, mumps
Term
droplet infected patients require a
Definition
private room and cohorts only if patients have te same organism
- a standard mask when transported
Term
airborne precautions
Definition
more stingent than droplet precautions
less than 5 microns in size, travel more than 3 feet and remain in the air longer
Term
4 organisms that are responsible for airborne transmission
Definition
measles, chicken pox, meningities, pulmonary TB
Term
patients with airborne transmission infections have to be put in a
Definition
airborne infection isolation room AAIR
it has a negative air flow so organisms can not creep out
have to have at least 6 air exchanges per hour ( now they have 12 )
have to be tested by smoke tubes or flutter strips to makes sure air is moving in the right direction, and to do a pressure check
air is either vented to the outside or has a heppa filter
DOOR MUST BE KEPT SHUT
-health care provider must wear a N-95 mask
Term
N-95 mask and Standard mask
Definition
N-95- filters air comming into the mask
standard mask -filters air going out of the mask
Term
protective enviroment
Definition
revrse isolation - protect patient from healthcare provider
flowers are prohibites in this enviroment
Term
surgical asepsis
Definition
sterile technique, procedures designed to totally eliminated organisms
Term
in medical asepsis something is considerd contaminated when-- and in surgical asepsis something is considered contaminated when
Definition
an object is suspected of harboring a disease
when an object touches an unsterile object
Term
surgical asepsis is used in
Definition
surgury, or inserting cathaders or anything when the first line of defense is down, suctioning lungs, certain dressing changing
Term
sterile field
Definition
a sterile surface for working
Term
7 sterile precautions
Definition
-only touch sterile objects
-do not remove your eyes from sterile object
-if sterile object goes below belt not sterile anymore
-no sneezing / coughing over sterile field
-create sterile working enviroment
-if pemeables steril field comes in contact with unsterile obect BAD
-1 inch unsterile edges of sterile field to carry it
-lipping the lip of an open bottle of sterile water pour 1-2 mL out
-only touch inside of gloves
-set cap of bottle facing up
Term
two types of wounds
Definition
tissue loss
without tissue loss
Term
3 types of wound healing
Definition
primary intention healing
secondary intention healing
tertiary intension healing
Term
primary intention healing
Definition
acute wounds without tissue loss, skin edges are approxamate and easily pulled together ( staples, sutures, steri-strips), heal in orderly and predictable fasion, all at once, usually 14 days, scaring minimal, risk of infection low
Term
secondary intention healing
Definition
tissue is lost, wound edges ca not be pulled together, heal from the bottum up with gradulation tissue, healing takes a long time, burns pressure ulcers, dermis never replaced and huge scar. new epithelial tissue covers gradual tissue
Term
tertiary intention healing
Definition
delayed primary closure
a wound where the edges could be pulled together and be closed sutures or staples but need to remain open for 3-5 days due to excessive drainage, hemmorage, or infection in the wound before it is closed
Term
what are the 4 types of wound drainage
Definition
-serous- clear and watery
-serosanginous- pale red and watery type of drainage ( some red blood cells in it)
-sanguinous- drainage that is primarily composed of actual bright red, thick drainage, if amount of blood if huge then its called hemmorage.
purulent- "pus" liquified nuercrotic tissue, usually not always indicates infection
Term
occationally hematoma can form in closed wounds
Definition
a collection of blood beneath the surface of the tissue producing swelling TRUE
Term
respiratory infection is the most common type of health associated infection and second is wound care
Definition
true
Term
infected wounds usually drain-- and --
Definition
purulent material ( yellow,green brown depending on causative organism), usually have an odor
Term
even in the absences of drainage all wounds have some bacteria on their surface
Definition
true, many are heavily contaminated / colonized but that doesnt mean actual infection is present . Wound should be cultures to see wheathe bacteria have actually invaded the tissue
Term
what indicates the presence of infection
Definition
edema, redness, excessively warm peri-wound skin, increased pain, and the development of tunnels (sinus tract) in the wound
Term
what are the four wound complications
Definition
dihiscence-
evisceration
fistula
enterocutaneous fistula
Term
dihiscence
Definition
partial seperation of wound layers atthe surface of wounds . most occurs with abdominal wounds; usually occurs 3-11 days after surgery;
Term
what patients are at high risk for dihiscence
Definition
obesity patients because of constaint strain of the wound and fatty tissue heals pourly
Term
what are signs of dihiscence
Definition
if serosanguinous drainaige occurs more than 48 hours after a wound is closed if this happens place the patient in low fowlers with knees bent to decrease tension on wounds
Term
evisceration
Definition
total seperation of all layers of a wound with profusion of abdominal organs. MEDICAL EMERGENCY REQUIRES SURGICAL REPAIR, if occurs cover wound with sterile cloths or dreesings soaked in sterile saline ( prevents bacteria from getting in and organs from drying out)
Term
fistula
Definition
an abnormal passageway connecting one epithelial surface with another epithelial surface
Term
entercutaneous fistula
Definition
an abnoramal passageway connecting an epithelial surface with an organ, a passage might go from small intestine to the skin surface which means CRAP comes out of your tommy, once they form a stoma they have to be surgically removed
Term
fistula also refers to
Definition
purposeful surgical connection made between an artery and vein to gain vascular access for hemodialysis.
Term
what are three types of drains
Definition
-penrose(passive, tube comes out to drain)
-Jackson-Pratt(hand grenade adominal surgeons use the most)
-Hemovac-oreo cookie orthopedic surgeons use mask
Term
Wounds should always be cleaned via
Definition
irrigation; unless otherwise specifically ordered
Term
what is the purpose of irrigating wounds
Definition
the intent is to gently wash away debris ( dead tissue) from the wound surface
Term
what are the four rules of cleaning
Definition
- sterile solutions are used with low pressure. Normally sterile saline is used when dressing ointments, but when the ointment has silver in t ( which is a bacterialcidal it will disrupt it ) so we use sterile water
Term
irrigate or clean from the least to most contaminated part of the wound
Definition
true; the wound is less contaminated than surrounding skin
Term
flow pressure for non-infected wounds, pressure and equipment
Definition
4-15 pounds per square inch(psi)
-use bulb syringe
-pistol syringe with no needle
-single-use plastic saline ampule
or gravity drip through IV drippping
(all deliver 2-4 psi
Term
flow pressure should be no more than --psi for non-infected wounds
Definition
30 psi
Term
For infected wounds you need a about --of pressure; and what equipment
Definition
35cc syringe with 19 gauge needle is often used -it delivers about 8psi
Term
do you clean around the wound
Definition
1" of the skin surrounding the wound (peri-wound skin)
Term
debridement
Definition
means removal of dead tissue; promoted healing by removing dead tissue and providing a clean inviroment for wound to heal properly
Term
what are the two types of necrotic tissue
Definition
-slough-loose, stringy, hydrated tissue that is usually yellow like pizza chees
-eschar-dehydrated, thick, leathery tissue that is usually black.
they prevent wound healing)
Term
5 types of debridement
Definition
1. mechanical-removal by direct pressure or force
2.autolytic-covering wound with transparent occlusions
3.chemical-application of topical enzyme that breaks down dead tissue
4.biological- maggot
5.surgical(sharp)-using a scapel to remove it
Term
three types of mechanical debridment
Definition
-wet to dry dressing
-pulsed low pressure ( requires special equipment
-whirlpool treatment-not used alot now to rough for grandule tissue
and pseudomas can ive in watery pipes
Term
autolytic debridement
Definition
covering wound with transparent occlusion synthetic dressing such as tegaaderm or opt site. It seals the wound keeps it moist , and allows the dead tissue to be self absorbed by the body
Term
chemical debridement
Definition
topical enzyme ointment that eats away at dead tissue; acts slowly (SO CANT USE ON PATIENT WITH SEPSIS). they work in the presense of moisture, make sure wound is moist apply damp saline dressing if necessary
-selective wont harm grandulane tissue as long asnot left on more than 24 hours
Term
two types of chemical debridement
Definition
accuzyme
santyl
Term
biological debridement
Definition
sterile maggots from the lab, tapped in place with occlusion dressing no more than 24-48 hours, debride gently eat ONLY neucrotic tissue
Term
7 types of dressing
Definition
transparent film
dry sterile dressing
dry gauze w/ topical ointment
moistened gauze
hydrocolloids
hydrogels
alginate
Term
transparent film dressing
Definition
either tegaderm op site
is good for superficial wounds with little drainage
not absorbant
used fo autolytic debridement
allows wound to be seen
served as a secondary dressing over gauze
Term
dry sterile dressing (DSD)
Definition
sterile 4*4 gauze taped in place
covers surgical incisions, keeps them clean, absorbs small amounts of drainage
24-48 hours lasts
Term
dry gauze w/ topical ointment dressing
Definition
used for infected wounds
gauze absorbs drainage but not occlusive allows air to pass through.
Term
when dry gauze is used to pack the wound
Definition
you should pack light but full, to tight can prevent wound closure
Term
moistend gauze ( wet-dry)
Definition
not used alot any more, you put wet gauze in wound let it dry pull it out with dead tissue stuck to dry gauze it can harm grandule tissue and leave gauze debri in the wound
Term
moistened gauze (wet-wet)
Definition
do not let it dry out purpose is to keep wound hydrated
Term
moistened gauze in general
Definition
only be changes twice daily, make sure you maintain normal temp at wound surface most of the day because it reduces vasoconstrivtion, and enhances cellular activity, do not get intact skin around wound wet
Term
hydrocolloids
Definition
duo-derm, available ad wafers in many forms, and as pastes and powders, they are an occlusive type dressing water resistant, and oxygen. good for partal and full thickness wounds with minimum to moderate drainage ( not very good absorbant), can be left on 3-5 days CAN NOT BE PUT ON INFECTED WOUNDS
Term
hydrogels
Definition
available as sheets,impregnanted gauze, or gels. They keep dry wounds moist, soothe and cool. not absorbant, often used with therma burns and painful wounds. need to be held in place with secondary dressings and changed daily because the can hurt the peri-wound skin
Term
alginate
Definition
made up of highly absorbant material manufactored from seaweed, can absorb up to 40 times their own weight in fluid. good fro draining wounds change 2 1/2 to 3 days. BE AWARE NOT ALL HAVE BEEN TESTED ON KIDS< INFANTS
Term
Negative Pressure Wound Therapy
Definition
NPWT - like a wound vac , wound packed with foam like substance and a occlusive dressing and it is sucked out. The negative pressure also stimulates capillary and grandulation tissue growth which helps wound edges draw together
Term
glue to heal wound
Definition
dermabond
Term
risk for infection
Definition
increased risk of being invaded by pathogens
Term
impaired and risk for impaired skin integrity
Definition
at risk for altered epidermis and dermis
Term
ineffective tissue perfusion
Definition
decrease in blood circulation that may comprimise health
Term
impaired tissue integrity
Definition
damage to mucous membrane, corneal, integrumentry,subQ tissue
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