Micro Chapter 16,17,20 Flashcards
Aseptic techniques
Prevents or reduces spread of MO’s from one site to another
Best practice in terms of gloves is
Removing contaminated gloves before leaving chair side during patient care
Before patient care begins you should
Dispense all items needed at chair side
When donning PPE what should be put on last and why
Gloves; to avoid unnecessary contaminates to clients mouth
When donning/doffing glasses and face shield
Touch only the ear rest or headband
If hands become contaminated stop and
Perform hand hygiene
Touch only the elastic bands/ties when
Donning/doffing masks and respirators
When removing the gown only touch
Only the inside; unfasten ties in the back, pull gown away from neck, shoulders and arms
Aerosols are generated during use of
High and low speed handpieces, ultrasonic scalers, and air water syringes
Aerosols may contain MO’s and may evaporate into what and may be inhaled where?
Droplet nuclei; in the air sacs or alveoli or remain airborne for extended periods of time
Spatter consists of? Can settle where?
Particles larger than 50um and can settle anywhere
Minimizing dental aerosols and spatter
High volume evacuation
Rubber dam
Proper positioning of clients head
The have system should be cleaned at the end of the day by evacuating what through the system
Detergent or water based detergent-disinfectant
What should you never evacuate through the hve system
Bleach
Creating a seal around the saliva ejector can cause
Back flow
What is the best combination/approach to minimize dental aerosols and spatter
Hve+rubber dam
Pre procedural mouthrinses lowers
The number of MO’s that may escape a clients mouth during treatment
Mouth rinse with a long lasting antimicrobial agent can reduce the level of oral MO’s for how long
Up to 5 hours
Examples of pre procedural rinses
Chlorhexidine, iodophors
Examples of disposables / single use items
Injection needle, anesthetic carps, air water syringe tips, HVE tips
What is aseptic retrieval
Retrieving a single item from a container without contaminating other items in container
Only what kind of film packets can be disinfected
Plastic film packets
Hand hygiene is achieved through the use of
Alcohol based hand rub (ABHR) or washing hands with soap and water
Clinic attire (scrubs/labcoats) is not intended to function as
Protection against a hazard where spatter or spray is anticipated
What are to be worn if there is potential exposure to body fluids
Gowns
TCDHA: level 2 masks are worn when
Non aerosol procedures
TCDHA: KN95 masks are used
For aerosol generating procedures
The most important method of preventing transmission of illness is through
Proper hand hygiene
Critical equipment
Enters sterile body site or vascular system; must be cleaned and sterilized
Semi critical
In contact with mucous membranes or non intact skin; cleaned and sterilized
Non critical items must be cleaned and undergo
Low level disinfection
No more than how many layers of cassettes are to be placed in ultrasonic at one time
2 layers
All instruments go into the ultrasonic baths for how many minutes to remove debris prior to sterilization
10 minutes
After instruments are removed from ultrasonic baths they are rinsed and dried with a
Lint free cloth
Sealable pouches contain what on the outside of the pouch and what on the inside
Class 1 indicator on outside
Class IV inside
Students are to place what in each cassette and pouch
Class V strip
Physical or mechanical indicators refer to
Gauges on sterilizers
Chemical indicators use chemicals to assess the physical conditions such as
Time
Temperature
And presence of steam
Internal indicators show
That the item has been exposed to steam for a minimum amount of time
External indicators show that a
Pouch or cassette has been processed
Spore testing is the
Biological testing of the sterilizers efficacy
Sterilizer tape is an example of
Class I indicator
At TCDHA all dental unit waterlines are purged at the beginning of each clinic session for how long
2-3 minutes
At TCDHA handpieces and piezo attachments used during client care are run for
20-30 seconds
Instruments are not to be sharpened
While the client is in the chair
At TCDHA a white sticker is used for
Pouches only
To qualify a sterilizer it must have
3 consecutive negative results in 3 empty chamber tests
PCD IS
process challenging device
