Manual Washing and Cleaning Flashcards
Why is the manual cleaning stage (whether automated or carried out manually) so important
this is when we remove proteins or ‘prion’ as it is not deactivated in sterilization and can survive high temperatures
What is the process of wearing PPE called
‘donning’
What do we don before manual cleaning
apron or gown
face shield
rubber gloves and heavy duty rubber gloves
What do we use for manual cleaning
dedicated sink for purpose of manually cleaning and another sink for rinsing which are not the same sink as for hand washing
use standard potable water which isn’t more than 35 degrees as it may cause proteins to coagulate
use a chemical detergent, generally enzymatic or pH neutral to improve the cleaning process and help remove any contamination
What recommendations must we follow
chemicals must be dosed based upon manufacturers instruction for the correct concentration
water must not be greater than 35 degrees.
must not exceed recommended temp as this may damage the efficacy of the chemical especially if we are using enzymatic as it is temp sensitive
Describe the action of manual cleaning
manually scrub
must take place below surface of water
generally use long handled, soft bristled, non-metallic brush that can be processed through a thermal washing cycle for this purpose
Why do we wash below surface of water
we need contact with the water and detergent
while carrying out the process we want to minimize splashing
scrubbing above the water causes aerosols to be produced
What do we do after processing instruments manually
introduce to ultra sonic bath
What does the ultrasonic allow
to get right into the textured surfaces and joints of the instruments
it uses sound waves at a high frequency to produce bubbles that implode and have a scouring effect against the hard surface of the instrument
How does the ultrasonic work
as sound waves pass through water they cause mircobubbles to be formed
the fluctuation in pressures the sound waves induce causes the bubbles to rapidly expand in what is known as cavitation
What is the operating temp for ultra sonic
20-30
How is the utlrasonic prepared
fill the machine with potable water to the required volume which is marked on the chamber
chemical must be added to the water in the chamber at the concentration recommended by the chemical manufacturer
cycle must be ran for specified period of time that has been established toe effectively remove contamination
What values must be kept in the equipment log book
date cycle number detergent added temp time
What happens after ultra sonic
should be rinsed in a separate rinse sink to remove any remaining residue from the previous stages
What is the first stage of the cleaning cycle
washer-disinfector
