Environmental considerations for Event Related Sterility

Standard Operating Procedures
Workplace Skills Assessments
“Getting it right, every step of the way”
Section 4
Stock management
4.1 Dedicated Area For Sterile Goods
 Only those sites that can ensure
environmental control (temperature and
humidity) and meet sterile stock storage
requirements of AS/NZS 4815 can move to
event related sterility. If these storage
requirements can not be met the unused
items must be reprocessed after 3 months
4.1 Dedicated Area For Sterile Goods
Environmental considerations for Event Related Sterility
 Temperatures in this area are in the range 18◦C - 22◦C
with a relative humidity ranging from 35% - 68%
 Secure from public access
 Limited staff thoroughfare/working in this area
 Sterile goods shall always be segregated from nonsterile goods
 Protected from direct sunlight
4.1 Dedicated Area For Sterile Goods
Environmental considerations for Event Related Sterility
 For open shelving store items 250mm above floor level
& at least 400mm from ceiling fixtures
 Surfaces such as walls, floors, ceilings and shelving
shall be non-porous, smooth and easily cleaned
 Air-conditioning & ventilation conditions should be in
accordance with AS1668.2
 New overhead lighting is fitted flush to the ceiling to
minimise dust entrapment
4.1 Dedicated Area For Sterile Goods
 Sterile stock produced by the health care facility or
commercially supplied is stored in an environment that
maintains the integrity of the sterile stock
 Sterile items from commercially or external suppliers are
to be removed from the store pack prior to being
brought into the clean area
 Cleaned in accordance with the facilities cleaning
 Do not use cardboard boxes
 Inventory control
4.1 Dedicated Area For Sterile Goods
 The environment shall be
Dedicated storage areas
Store in a clean, dry, dust free environment
Insects and vermin free
Protected from direct sunlight
250mm above floor level & at least 400mm from
ceiling fixtures
4.2 Stock Rotation
 The purpose of stock rotation is to use sterile stock
according to the date of manufacture/sterilisation
 Rotate stock so the “oldest manufactured date” stored
items will be used first
 Take from e.g left & replace to the right or front to back
 Handle only when necessary
 Do not overstock – damage & compromise
Time-Related Sterility
 Based upon an arbitrary date allocated to sterilised
packs/pouches etc by which they should undergo reprocessing and sterilisation if they have not been
 If storage & handling conditions are not ideal, or if
the packages are frequently handled, items may
need to be reprocessed more frequently
Event-Related Sterility
 This process is a method of determining if an item is
still sterile by assessing whether it has undergone any
events, which may have compromised its sterility,
such as
Incorrect cleaning in storage areas
Moisture and condensation
Exposure to harsh as well as external climatic conditions
Dust, Vermin and insects
torn/soiled wrapping or poor storage
Maintain sterile stock
Do Not
 Handle without washing and drying hands
 Store in a manner that could damage the
 Bundle using rubber bands or similar
 Place on or near potentially wet surfaces
 Exposed to aerosolising procedures – only take to
chairside what is required for the session.
Dental Instruments
 Sterile at point-of-use
 must be stored to maintain
sterile conditions
 must be tracked when used
Extraction instruments
4.3 Delivery of Sterile Stock
To facilitate safe and secure transportation of sterile stock to user
 Always check items for pack integrity including labelling
 Dedicated trolleys covered and closed with a solid bottom shelf
 When transporting sterile stock from area to area trolleys must
be enclosed or be covered with a clean dust cover.
 Dedicated transport containers shall have lids that can be
secured and be able to withstand cleaning
 If a trolley or container transports both sterile and clean items,
the clean items are to be segregated from the sterile items

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