303 Flashcards
(37 cards)
Which term is the process of killing all microorganisms and spores?
Sterilisation
How often should DUWLs be cleaned with biocide chemicals to prevent biofilm buildup?
After every use
What appliance operates at 134 degrees for 3 mins at 2.25 bar pressure with a vacuum?
B type autoclave
What is a validation test for ultrasonic baths to ensure all blood has been removed effectively?
Protein residue test
Which infective agent causes Creutzfeldt-Jakob disease?
Prion
Which microorganism causes ANUG (acute necrotising ulcerative gingivitis)?
Borrelia vincentii
Being infected with what virus is linked to oral cancers?
Human papillomavirus HPV
Which infection control procedure aims to eliminate the risk of cross contamination between patients?
Use of single-use items
What is a single celled organism that can cause disease?
Bacteria
What is useful in destroying bacterial contamination of hard surfaces in the surgery?
Bactericides
Which term is used for assuming any patient may be infectious and enshrines this principle of infection control?
Standard precautions
What cleaning agent weakens in strength over time so needs to be made fresh regularly?
Bleach based solution
Which equipment disinfects hand instruments thermally and replaces the need for manual scrubbing?
Washer disinfector
What is physical segregation?
Where a dedicated decontamination area is separated from the patient treatment area in another room
How do you break links in the chain of infection?
Handwashing, cleaning surfaces, wearing PPE, cover coughs/sneezes, controlling airflow
How does the chain of infection work?
Agent infects reservoir (people, animals, food etc)
germs get out by portal of exit
pass by mode of transmission (contact, droplets)
portal of entry (mouth, eyes, cuts), then infects the next susceptible host
When should you wash your hands?
Before touching and after touching a patient
After body fluid exposure
Before cleaning procedures
After touching patient surroundings
What daily checks are done to validate a steriliser?
Clean rubber door seal, check chamber, fill tank with distilled water, turn power on, bowie and dick tests
How often should an autoclave be serviced by engineer to ensure it complies with Pressure Safety Systems Regs 2000?
Every 14 months
How is a washer disinfector validated?
Visual checks
Automatic control test
Chemical dosing
Soil efficacy test
What is direct contact?
Where a disease passes person to person through immediate physical contact between people or bodily fluids
What is indirect contact?
Touching an object that becomes contaminated by touch and then disease is spread by it touching other things. Can also spread by droplets
(E.g instruments not being disinfected properly then used on other patients and infecting the patients)
What is social handwashing?
Routine hand wash using soap and water - removes visible dirt, transient microorganisms and dead skin cells. (Can also be achieved using alcohol gel)
What is clinical handwashing?
Removes transient organisms as well as preventing growth of resident microorganisms before or after direct or indirect contact with patients.
Clean with warm water and antibacterial soap for at least 20 secs
