Keep It Clean In cooperation with: The Emma Barnsley Foundation The PEER Program at Texas A&M...
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Transcript of Keep It Clean In cooperation with: The Emma Barnsley Foundation The PEER Program at Texas A&M...
Keep It CleanIn cooperation with: •The Emma Barnsley Foundation•The PEER Program at Texas A&M College of Veterinary Medicine & Biomedical Sciences
peer.tamu.edu
Homeostasis• The ability of the body to maintain internal stability or
balance• Inability to maintain homeostasis may lead to disease
or death
Are You in Balance?
• What are some ways your body maintains homeostasis?
Microorganism• Microscopic organisms– Bacteria, protozoa, fungi, algae, viruses
• Present everywhere– Bodies, soil, atmosphere, ocean, Antarctica…
• Beneficial or detrimental – Nutrient cycling, food preparation, nutrient
absorption, pathogenic
Microorganisms & Disease• Pathogen - a micro-organism that has the
potential to cause disease• Infection - the invasion and multiplication of
pathogenic microbes• Disease - infection causes damage to the
individual’s vital functions or systems• homeostatic imbalance
Microorganisms & Disease
• To cause an infection, microbes must enter our bodies– portals of entry
Respiratory tract (mouth and nose)
Gastrointestinal tract (mouth oral cavity)
Urogenital tract
Breaks in the skin surface
Microorganisms & DiseaseTo make us ill microbes have to:•Reach their target site •Attach to the target site•Multiply rapidly•Obtain nutrients from the host•Avoid and survive attack by host’s immune system
Aseptic Technique
• A procedure used by medical staff to prevent the spread of pathogens–Achieve asepsis (the state of being free
from disease causing contaminants)
This is a Test!• Fiona has come to the Texas A&M Small
Animal Teaching Hospital to be spayed. Which image illustrates the mostly likely source of contamination during her surgery?
Fiona SurgeonSurgical
Instruments
Cleanse with a disinfectant containing iodine, alcohol, or chlorhexidine gluconate
Apply sterile drapes around the surgical site
Patient
• Most comon source of pathogens
Shave hair from the surgical site
Surgical Team• Hand washing/surgical scrub– special antimicrobial soap on hands and forearms– 2 – 5 minutes of scrubbing
Surgical Team • Sterile clothing– Gloves, face masks, goggles, and transparent
eye/face shields • serve as barriers against microorganisms
– Cover facial hair, tuck hair in cap, remove jewelry– Dress with deliberate care to avoid touching
external, sterile surfaces with non-sterile objects• Personnel assist the surgeon
Equipment• Surgical instruments - sterilized by chemical
treatment, radiation, gas, or heat• Ensure sterility by checking sterility indicators and
that packages are dry and intact• Never re-use disposable equipment– Syringes
Environment• Contains potential hazards that may spread
pathogens through movement, touch, or proximity
• Restrict traffic in the sterile field• Maintain positive-pressure airflow (to prevent
air from contaminated areas from entering the sterile field)
What About Your Environment?
• Look around your classroom and identify items that might help achieve asepsis.
Questions?