Shared Flashcard Set

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Patient Care
Ch 18, 20 & 21
66
Medical
Undergraduate 2
12/11/2015

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Cards

Term
sterile conscience
Definition
the awareness of sterile technique and the responsibility for notifying those in charge whenever contamination occurs
Term
sterile field
Definition
a specified area, such as within a tray or on a sterile towel, that is considered free of microorganisms
Term
sterilization
Definition
treatment of items with heat, gas, or chemicals to make them germ-free
Term
surgical asepsis
Definition
the process of creating and maintaining an area that is completely free of pathogens
Term
surgical hand rub
Definition
specific method of reducing the number of organisms on the hands and forearms and decreasing the rate of microbial growth in the following hours using a nonantimicrobial soap, drying the skin, and applying a surgical alcohol-based skin rub
Term
surgical hand scrub
Definition
specific method of reducing the number or organisms on the hands and forearms and decreasing the rate of microbial growth in the following hours using a brush and antimicrobial soap
Term
What are the 5 methods of sterilization?
Definition
-chemical
-autoclaving
-gas
-gas plasma
-dry heat
Term
Chemical sterilization
Definition
-immersion and soaking of clean objects in a bath of germicidal solution followed by sterile water
-used to achieve high-level disinfection or devices that come in contact with mucus membranes
-example: endoscope
Term
Why is chemical sterilization not recommended for surgical asepsis?
Definition
-contamination of the solution or object may occur and is not easily detected
-does not kill spores
Term
autoclave
Definition
an appliance used to sterilize medical instruments or other objects with steam under pressure
-example: items that can withstand heat and moisture
Term
What is the most commonly used method of sterilization?
Definition
autoclave
Term
What is the quickest and most convenient means of sterilization?
Definition
autoclave
Term
Gas sterilization
Definition
-used for items that would normally be damaged by high temperature
-examples: electrical, plastic, rubber items, optical ware, telephones, stethoscopes,blood pressure cuffs, items in isolation rooms
Term
What is a drawback of gas sterilization?
Definition
-the gases are poisonous and must be aerated in an controlled environment which makes this a slow process
Term
What is a safer method, compared to gas sterilization, of sterilizing heat and moisture sensitive items?
Definition
gas plasma sterilization
Term
gas plasma sterilization
Definition
-items are cleaned, wrapped, and placed in a compact mobile unit where low temperature hydrogen peroxide gas plasma diffuses through the wrapped instruments killing microorganisms and spores
-examples: endoscopes, fiberoptics, microsurgical instruments, and powered instruments
Term
What are the advantages of using gas plasma sterilization?
Definition
-cost effective because many items can be sterilized at the same time
-safer for sterile supply workers
Term
What are the disadvantages of using gas plasma sterilization?
Definition
-cannot be used to sterilize instruments with long, narrow lumina, powders, liquids, cellulose materials such as paper, muslin, cotton, or linen
Term
Dry heat sterilization
Definition
oven or vacuum chamber with infrared heating element
Term
In what regions are you more likely to encounter dry heat sterilization?
Definition
Great Britain and tropical regions
Term
Why is dry heat more advantageous to purchase than autoclave?
Definition
dry heat is less expensive
Term
What are other advantages using dry heat?
Definition
effective sterilization of powders and ointments in sealed containers
Term
What are disadvantages of using dry heat?
Definition
-takes longer than some methods
-some instruments cannot withstand the high temperatures
Term
sterility indicators
Definition
-chemical indicators that change color when package is sterilized fully
Term
biological indicators
Definition
-closed containers of nonpathogenic spore forming bacilli placed within the same unit as the equipment needed sterilization
-if spores are unable to culture, the instruments are sterilized
Term
What criteria determines if a package is sterile?
Definition
-clean, dry, unopened
-not expired
-sterility indicators changed to appropriate color
Term
Steps for opening sterile packages for sterile field
Definition
-place on clean surface
-break seal and open pack right before procedure
-unfold first corner away from you; then unfold the 2 sides
-pull front fold down toward you and drop it
- do not touch the inner surface
-if there is an inner wrap, use above procedure
Term
Standard principles of asepsis
Definition
-sterile object touched by non-sterile object is contaminated
-never reach across a sterile field
-if you suspect an item is contaminated, discard it
-do not pass between physician and sterile field
-never leave sterile field unattended
-1 in perimeter of the sterile field is "buffer zone" and treated as contaminated
Term
What is the purpose of skin preparation?
Definition
to minimize the introduction of pathogens to the body via puncture or incision reducing likelihood of infection
Term
Why should you shave a patient?
Definition
only on specific order of the physician
Term
Preparing the skin for sterile procedures
Definition
-get skin prep set
-hand hygiene
-position patient comfortably
-explain procedure
-expose an area slightly larger than preparation site
-fill basin with warm water
-apply soap
-shave
-rinse area
-rinse and refill basin
-clean area in circular motion from puncture site
-remove soap with sterile sponge
-pour out some antiseptic into trash
-dip gauze in antiseptic
-paint on antiseptic working outward in circular motion
-allow skin to dry
-repeat previous 2 steps
-open sterile pack
Term
open gloving method
Definition
-used when sterile gowning is NOT required
Term
closed gloving method
Definition
-used when sterile gowning IS required
-gloves on last
Term
atelectasis
Definition
partial or complete collapse of lung preventing respiratory exchange; in newborns called incomplete lung expansion
Term
coronary care unit
Definition
for patients with critical cardiac conditions who need constant monitoring
Term
decompression
Definition
removal of pressure caused by gas or fluid in a body cavity
Term
enclosed incubator
Definition
closed environment for infants providing warmth, moisture, and oxygen while reducing exposure to infection
Term
intensive care unit
Definition
for patients in critical condition who need constant monitoring
Term
nasoenteric tube
Definition
placed through nose into the GI tract to aspirate gas and fluid causing distention
-also for decompression, radiographic exams, and feeding
Term
nasogastric
Definition
placed through the nose, pharynx, esophagus, and into stomach to allow feeding directly into stomach
-also for decompression and radiographic exams
Term
neonate
Definition
infant from birth to 28 days
Term
orthopedic traction
Definition
mechanical method that uses weights to provide a constant pull on part of the body for therapeutic reasons
Term
osseous
Definition
consisting of or resembling bone; bony
Term
postanesthesia care unit
Definition
recovery room used immediately after surgery close to all essential staff
Term
tracheostomy
Definition
opening through the neck into the trachea through which an indwelling tube may be inserted to ventilate the patient's lungs
Term
tracheotomy
Definition
incision into the trachea through the neck below the larynx to gain access to the airway below a blockage caused by a foreign body, tumor, or edema
Term
Two types of mobile x-ray generators
Definition
-mobile radiographic unit
-C-arm mobile image intensifier (fluoroscopic unit)
Term
General guidelines for performing bedside exams
Definition
-call nursing station before leaving imaging department unless STAT order
-check with nurse to ask about pt condition
-confirm order
-greet patient, check name and birthday, inspect and prepare room for imaging exam
Term
Special Care Units
Definition
-patients are in critical condition and need constant monitoring
-includes: ICU, CCU, NICU, PACU, ED
Term
PRDS
Definition
pediatric respiratory distress syndrome
Term
Do NOT open an enclosed incubator or handle a newborn unless.....
Definition
a nurse or physician is present
Term
Why are patients with head injuries kept semi-erect?
Definition
to minimize intracranial pressure
Term
Closed chest drainage
Definition
method used to remove fluid or air that has accumulated in the pleural space
Term
Why is it important to kept drainage unit below chest level?
Definition
to avoid reverse flow
Term
pulmonary artery flow-directed catheters
Definition
measure cardiac output, heart and lung pressures
Term
central lines or central venous catheters
Definition
facilitate the administration of chemotherapy or other long term drug therapy, total paraenteral nutrition, dialysis, or blood transfusions
-tip should always be located in the superior vena cava
Term
Types of central line/venous catheters
Definition
-short or long term, non-tunneled external catheters
-long term, tunneled external catheters
-long term, implanted infusion ports
Term
artificial pacemaker
Definition
an electromechanical device that regulates the heart rate by providing low levels of electrical stimulation to the heart muscle
Term
cholecystectomy
Definition
surgical removal of the gallbladder
Term
laparoscope
Definition
Instrument used for visual examination of the abdominal cavity
Term
lithotripsy
Definition
A procedure for crushing and eliminating a calculus in the renal pelvis, ureter, bladder, or gallbladder.
Term
patent
Definition
state of being open or exposed
Term
sterile corridor
Definition
area of an operating room between the patient drape and the instrument table where you must wear sterile attire
Term
trocar
Definition
A sharp, pointed rod that fits inside a tube used to pierce the skin and the wall of a cavity of canal in the body to aspirate fluids, to instill a medication or solution, or to guide the placement of a soft catheter or fiberoptic device.
Term
Sterile members of the surgical team
Definition
-surgeon
-surgeon assistant
-nonphysician assistant
-scrub person (RN, vocational nurse, or surgical tech)
Term
Non-sterile members of the surgical team
Definition
-anesthesiologist
-circulating nurse
-other techs (biomedical, orthopedic, radiologic)
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