Manual Washing and Cleaning Flashcards
what PPE must you use when cleaning
apron
visor
rubber gloves
what must there be for manual cleaning
a sink for washing and another sink for rinsing instruments
what water is used for washing
standard tap water
what temperature should water be when washing
30-35 degrees
what happens if the water goes over 35 degrees
it can cause proteins to coagulate which makes them difficult to remove
what is used for cleaning during manual washing
chemical detergents
what are the 2 methods of manual cleaning
immersion and non-immersion
how much detergent should be used per litre of water
5millilitres
what brush should be used for cleaning
long handled, soft bristled brush
why should a metallic brush never be used for cleaning
it can damage the instrument
what are the reasons to use the immersion method of cleaning
instruments must be in contact with the water and detergent solution
minimise splashing
scrubbing above surface can produce aerosols
when should manual cleaning be carried out
when recommended by manufacturers instructions
no alternative
automated process failed to clean them
how does the ultrasonic bath work
uses soundwaves at high frequencies to produce bubbles that implode and have scouring effect against the hard surface of instruments
explain cavitation
as sound waves pass through water they form bubbles
fluctuation in pressure causes sound waves which cause bubbles to rapidly expand and collapse
what is the operating temperature of the ultrasonic bath
20-30 degrees
what water is used for ultrasonic bath
tap water
what should occur in an ultrasonic bath before instrument cleaning
degas cycle - standard production cycle
why should a standard production cycle occur in an ultrasonic bath
air/gas bubbles inside water normally which collapse into air bubbles and effect efficacy of equipment and prevent proper cleaning of instrumentation
what should be kept in an equipment log book for ultrasonic bath
date
cycle number
detergent added
temperature
time
operator name
what should happen after manual or ultrasonic cleaning
rinsing in a separate sink
what happens to instruments after rinsing
processed through washer disinfector
what is the first stage of the cleaning process
washer disinfector
what are the reasons for manual washing
manual scrubbing generates greater force than washer disinfector
some equipment must be manually washed
what are the reasons for ultrasonic bath
ferocious process that is very good at removing contamination
