1st Exam. Part 5. PRE-Operative Asepsis Flashcards
Pre-operative asepsis (3)
- Cleaning of environment (Remove debris, Disinfection)
- Sterilize materials or instruments
- Preparation of surgical site
disinfection and sterilization
Established importance of disinfection of surgical instrument and materials
Spaulding
SPAULDING STERILITY CLASSIFICATION (3)
- Critical
- Semi-critical
- Non-critical
classify the spaulding that enters into:
- sterile tissues
- body cavity
- blood stream (Use of High Heat)
Critical
classify the spaulding that comes in contact with intact non-sterile mucosa or non-contact skin disinfection (ENDOSCOPES)
Semi-critical
classify the spaulding that comes in contact with intact skin (SIMPLE DISINFECTION)
Non-critical
hemostats should ____ prior to sterilization
lock
- To ensure all instruments and materials are sterile and clean
- To minimize contamination
Sterilization
Methods of sterilization (4)
- Physical sterilization (High and Low temperature)
- Chemical sterilization
- Gas sterilization
- Radiation sterilization
Types of Physical Sterilization (6)
[ MD GPIC ]
- Moist heat
- Dry heat
- Gas sterilization
- Plasma sterilization
- Irradiation / Ionizing
- Cold Chemical sterilization
Uses steam under pressure
Autoclaving (moist heat)
Baking and flaming
Effective for SHARP instruments
Dry heat
Flammable and Expensive
Gas sterilization
relatively safe
Shorter period of time to sterilize instrument
Expensive
Plasma sterilization (Hydrogen peroxide)
most common used in pre-packed and disposable supplies
Irradiation / Ionizing (gamma)
- Do not dull sharp instruments
- Effective in smooth and hard surfaces
- Affected by dilution
ineffective against SPORES
Cold chemical sterilization
used normally for autoclaved packs
Sterilization indicator / markers
In preparation of surgical site:
small animals: ___ inches away from surgical area
large animals: ____ inches away
small animals: 2 inches away
large animals: 10 inches away
Method of application where movement is centripetal or away from the center, never in the same site twice.
Circular
Method of application where movement is outward
Linear
