Revision Q's Flashcards
What is Aseptic technique?
All the steps taken to ensure freedom from infection during surgery
What is sterilisation?
Complete destruction of all micro-organisms, including spores
What is disinfectant?
A chemical used to destroy or inhibit the growth of micro-organisms on inanimate objects
What is antiseptic?
A chemical used to destroy or inhibit the growth of micro-organisms on living tissue
What is bacteriocidal?
Kills bacteria
What is bacteriostatic?
Inactivates bacteria
List 4 sources of contamination to a surgical patient
- The patient
- The surgical team
- Poor housekeeping
- Surgical instruments and supplies
List 4 general ‘rules’ for the use of disinfectant
- The surface being disinfected should be as clean possible
- The disinfectant must contact every surface of the article
- The disinfectant must be used at the correct dilution (check label)
- PPE must be worn when required
Why is aseptic technique so important? Give 6 reasons
- Prevents failure of proper healing or slow healing
- Prevents unnecessary pain to patient
- Prevents client dissatisfaction
- Prevents further complications such as wound breakdown or illness
- Prevents extra time and cost being spent on patient
- Prevents death in patient
Briefly explain how an autoclave works
An autoclave is a machine which produces steam in a confined space. When placed under pressure the temperature of the steam rises and becomes a reliable method of sterilisation.
What are 3 methods for cleaning instruments?
- Fresh running water
- Ultrasonic cleaners
- Chemical cleaners
Why is instrument milk used?
Lubricating instruments
Why do we wrap packs, and name 3 materials used for this process
- Provides a bacterial barrier to the contents
- To label contents and provide quick ID
- Protects contents from damage through transport
- Keeps items together in one pack
- A means of indicating shelf life
- A means of indicating sterile packs from un-sterile packs
3 materials: cloth/linen, laminates, non wovens
How do we label the packs, what do we use and why?
Packs are labelled with their contents (eg spey kit), the date, size if applicable and the person who packed initials. Labels are written with a felt tip pin on a piece of autoclave tape.
How is effectiveness of sterilisation assessed?
Autoclave tape – Lines change in colour when temperature of steam has reached an adequate level
Indicator strip – Placed in the centre of the pack and indicate that the steam has penetrated to that point.