Manual Washing and Cleaning Flashcards
What PPE must be worn when manual washing?
hand hygiene first!
- Apron - protects the person from splashing
- Face shield - to protect eyes and face form splashing
- Rubber gloves - to prevent touching contaminated instruments and to prevent detergent irritating hands
Can you wash your hands in the sink used for manual washing?
No there must be separate sinks for handwashing, manual cleaning and rinsing instruments after cleaning
Is sterile water required for manual washing?
no tap water an be used
What temperature must water be for manual washing?
between 30 and 35C
> 35C will because proteins to coagulate making them more difficult to remove
What chemical is used for manual washing?
chemical detergent with an enzymatic or neutral pH
What are the 2 methods of manual cleaning?
- immersion
- non immersion
Why is the temperature of the water important when using a chemical detergent?
chemical detergents are enzymatic and may be denatured at excessive temperature, this will reduce the efficacy of the chemical
Why must instruments be scrubbed below the surface of the water ?
immersion minimises splashing and contaminating surroundings
ensures contact with warter and detergent solution
scrubbing above water has the potential to produce aerosols
When must manual cleaning be carried out?
- when recommended by manufacturers instructions
- when there is no other alternative
- when ultrasonic or WD has failed to remove contamination
What is the first stage in cleaning?
Washer-Disinfector
How does ultrasonic baths work?
They use sound waves at very high frequency to produce bubbles that implode and have a scouring effect against the hard surface of the instruments
What is cavitation in relation to Ultrasonic baths?
the sound waves produced by the ultrasonic bath because micro bubbles to form and the fluctuation in pressures causes the bubbles to rapidly expand and then collapse
What are the requirements for ultrasonic cleaning ?
- temperature between 20-30C
- water filled to the required volume
- Chemicals added to the water based on manufacturers instructions
Why must a De- gas cycle be ran before the ultrasonic bath is used for instruments ?
there is bubbles in water that will create air bubbles
Air will effect the efficacy of the ultrasonic and prevent proper cleaning of instruments
What information is recorded for ultrasonic cleaning?
Date
Cycle number
Detergent added
Temperature
Time
Operator Name
