Transcript Document

Best Practices for
High-Level Disinfection
(HLD)
Objectives
At the end of this program, participants will be able to:
• explain the Spaulding classification system for the
reprocessing of reusable medical devices,
• understand the importance of effective cleaning of
reusable medical devices prior to HLD,
• identify commonly used agents for HLD,
• discuss SGNA recommended steps for the HLD of
flexible gastrointestinal endoscopes.
Spaulding Classification System
In 1968, Dr. Earle Spaulding devised a rational
approach to disinfection and sterilization that is
still in use today. He believed that instruments
and equipment should be reprocessed according
to the nature of the item and the level of risk
associated with their intended use.
This is referred to as Spaulding's classification system
and it has been refined and retained over the years,
because it is so clear and logical. The three (3) categories
he described were critical, semi-critical and non-critical.
Spaulding Classification System
Critical items are medical devices that enter sterile tissue
or the vascular system. These items should be sterile
when used. Examples include, but are not limited to:
surgical instruments, cutting endoscopic accessories that
break the mucosal barrier, endoscopes used in sterile body
cavities, cardiac, vascular or urinary catheters, implants,
needles and ultrasound probes used in the sterile body
cavities.
Spaulding Classification System
Semi-critical items are medical devices that come into
contact with non-intact skin or mucous membranes.
These items should be high level disinfected when used.
Examples include, but are not limited to: vaginal and
rectal probes, anesthesia equipment, laryngoscopes,
bronchoscopes and gastrointestinal endoscopes and
accessories.
Spaulding Classification System
Non-critical items are medical devices that come into
contact with only intact skin. These items should receive
intermediate level disinfection, low-level disinfection or
cleaning. Intact skin acts is considered an effective
barrier to most organisms. Examples of non-critical item
include, but are not limited to: tourniquets and blood
pressure cuffs, linens, bed pans and stethoscopes.
Three Levels of Disinfection
The terminology adopted by the CDC and widely used,
describes disinfectants in terms of their activity as set out
below. This program will focus on high-level disinfection
(HLD).
• High-level disinfectants are chemical sterilants, which when
used for a shorter exposure period than would be required
for sterilization, kill all microorganisms with the exception
of high numbers of bacterial spores.
• Intermediate-level disinfectants may kill mycobacteria,
vegetative bacteria, most viruses, and most fungi but do not
necessarily kill bacterial spores
• Low-level disinfectants may kill most vegetative bacteria,
some fungi, and some viruses.
BEST PRACTICES
In the U.S., high-level disinfection best practices are
detailed in AAMI Standards, the AORN Perioperative
Standards and Recommended Practices, along with
other documents, such as SGNA which focuses on
flexible gastrointestinal endoscopes.
www.aami.org
www.aorn.org
www.sgna.org
HLD starts at POU!
Pre-cleaning must occur at point of use in order to keep
blood and other organic material from drying. Blood and
body fluids, as well as saline, are highly corrosive and can
damage instruments. Dried blood and debris is difficult, if
not impossible to clean during decontamination, which can
cause disinfection (or sterilization) not to be achieved.
Surgical instruments should be wiped as needed with
sterile surgical sponges moistened with sterile water during
the procedure to remove gross soil. Instruments with
lumens should be irrigated with sterile water.
Pre-Cleaning at POU
Flexible endoscopes used on the sterile field should be
pre-cleaned to the following recommended steps:
1. Wipe external surfaces with a lint-free cloth saturated
with sterile water.
2. Alternate suctioning the channels with sterile water
and air.
3. Hand the endoscope and accessories to the circulator
as soon as possible, so he/she may pre-clean (follow
the steps on the next slide).
Pre-Cleaning at POU
Flexible endoscopes used in GI/Endoscopy Centers
should be pre-cleaned in the Procedure Room wearing
appropriate PPE and using the following recommended
steps:
1. External surface of insertion tube should be cleaned
with a soft cloth or sponge and an enzymatic detergent.
2. Internal suction/biopsy channels cleaned by suctioning
copious amounts of enzymatic detergent and air.
3. Air/water channels flushed with enzymatic solution,
then flushed using low-pressure compressed air or a
syringe if air is not available.
Pre-Cleaning at POU
4. Complex design components or channels should be
flushed or purged with water and/or enzymatic
detergent solution per the MFG’s IFU.
5. The tip of the endoscope should be inspected for
damage to any surface and any working part, and for
cleanliness.
6. The video protective cap (if applicable) should be
attached after removing the endoscope from the light
source and suction.
7. Remove all detachable parts and immerse in enzymatic
detergent solution until transport.
Transport
After pre-cleaning at point of use, contaminated items
should be immediately transported to the decontamination
area before any remaining organic material dries on the
surface, box lock, crevices or channels of the instruments.
Surgical instruments should be covered with a wet towel
or treated with an instrument cleaner prior to transport.
Contaminated items can expose healthcare workers and
can contaminate the environment during transport. A
sealed container should be used to avoid contaminating
the environment or exposure to health care workers. Per
OSHA, the transport container must be labeled to indicate
biohazardous contents.
Cleaning and Rinsing
Meticulous cleaning and rinsing must proceed HLD or
sterilization of reusable medical devices in accordance
with the device MFG’s validated IFU. It is best practice for
healthcare facilities to secure and review the IFU prior to
purchase, trial or borrowing a device to ensure they have
the necessary resources to comply with the IFU.
Special Note: Never clean in a sink that is used for hand
washing. Be sure to wear PPE, such as face shield, face
mask, fluid repellant gown with sleeves and utility gloves
to protect yourself. Pay close attention to the quality of the
water specified in the IFU, especially for rinsing.
Drying and Inspection
After devices are rinsed they can be dried with a lint free
cloth, air and an alcohol flush when cleaning flexible
endoscopes.
Visual inspection is important as soil or detergent residues,
lint from cloths, as well as minerals found in hard water
can affect the efficacy of the HLD solution. To verify the
effectiveness of the cleaning process, consider using an
external quality control check, such as
ATP systems or the VERiFIND™
Protein Detection Kit.
Heat HLD
Pasteurization is a heat-automated HLD process that uses
time and heat (i.e. 160-170°F/21.7-25°C) for 30 minutes
to achieve HLD of heat-sensitive semi-critical devices.
Medical washer/pasteurizers have wash, rinse and
pasteurization cycles. Some pasteurizers offer quality
assurance data recorders that document the temperature
and cycle time.
Chemical HLD
For chemical HLD, healthcare facilities must purchase an
FDA cleared HLD product as listed on the FDA website.
Product selection should be compatible and efficacious
with the materials or items to be disinfected.
The use of incompatible chemicals can damage the
surfaces of the instrument, causing corrosion, scratches
and other surface irregularities. Such damage can be a
challenge for cleaning, HLD, interfere with proper
function, and reduce the life and cosmetic appearance
of the device.
FDA-cleared Chemical sterilants and HLDs
Device Type
# of Registered
Products
Chemical
Sterilization
High Level
Disinfection
Glutaraldehyde
17
X
X
Hydrogen Peroxide
4
X
X
Ortho-phthaldehyde
(OPA)
3
Peracetic Acid
2
Sodium Hypochlorite
1
Chemical Vapor
w/Formaldehyde
2
X
Hydrogen Peroxide Gas
Plasma
1
X
Hydrogen Peroxide
without Plasma
1
X
Ozone Gas
1
X
X
X
X
X
Source: www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/ReprocessingofSingle-UseDevices/ucm133514.htm
Chemical HLD
HLD requires appropriate temperature, contact time, and
length of use following solution activation. MFG’s IFU
should be followed when preparing disinfectant solutions,
calculating expirations dates, and labeling solution soaking
containers.
Chemical HLD
Glutaraldehyde has been widely used for a long time in
health care facilities as a HLD for reusable medical devices.
Most solutions are acidic and must be activated to become
sporicidal. There are a variety of brand names available in
a variety of concentrations, with and without surfactants.
HLD and Steriliant
requires no mixing or
activation
Special Note:
For solutions that require mixing or activation, it is critical
to follow the MFG’s written IFU concerning water quality.
Some HLDs may require treated water and if a water
treatment process is used, it should be monitored to ensure
that the appropriate quality of water is achieved.
HLD and Steriliant requires
no mixing or activation
Chemical HLD
Ortho-phthaladehyde (OPA) has demonstrated superior
mycobactericidal activity compared to glutaraldehyde and
requires no mixing or activation. OPA has been shown to
last longer before reaching its MRC and the concentration
of the active ingredient does not decrease with age alone.
Chemical HLD
Other solutions FDA-cleared for HLD include, hydrogen
peroxide, peracetic acid and sodium hypochlorite in a
variety of concentrations and combinations. The FDA
website has a listing of manufacturers, active ingredients
and contact conditions for each cleared solution.
General Safety Considerations
Healthcare personnel must be advised of the hazards
associated with chemicals, such as HLDs and trained in
appropriate safety procedures. OSHA requires healthcare
facilities to maintain the SDSs for all hazardous chemicals
and be readily available to personnel working in the area.
When handling HLDs, personnel should wear protective
apparel that may include, but is not limited to:
• 100% nitrile rubber or 100% butyl rubber gloves when
handling glutaraldehyde. Note: PVC gloves should not
be worn because they absorb glutaraldehyde.
• Protective eye wear, face mask, and impervious gown.
Chemical HLD Safety
Glutaraldehyde should only be used in well ventilated
areas or in freestanding or vented chemical fume hoods.
Vapor generated from glutaraldehyde can may aggravate
preexisting respiratory conditions.
AAMI describes adequate ventilation as:
1.
2.
3.
4.
5.
6.
7.
Room large enough to ensure adequate dilution of vapors.
10 air exchanges per hour.
Exhaust located at the source of the discharge of vapors.
Fresh air return at ceiling level across room from exhaust vents.
Routine maintenance and surveillance of system.
Elimination of cross draft effects.
Air must not be recirculated.
Chemical HLD Safety
Glutaraldehyde can be absorbed by inhalation, ingestion
and through the skin. It has a detectable odor at 0.04 parts
per million volume (ppmv) and is irritating to skin and
mucous membranes at 0.3 ppmv.
Vapors are released whenever solutions are disturbed and
the surface tension is broken, such as mixing, adding and
removing equipment, or disposing of a glutaraldehyde
solution can cause a break in the surface tension. Always
cover the solution with a tight-fitting lid.
Chemical HLD Safety
Glutaraldehyde vapor monitoring is important per
The American Conference of Governmental Industrial
Hygienists (ACGIH) which recommends a ceiling limit
of 0.05 ppm for occupational exposure.
OSHA has not established exposure limits; however,
OSHA can regulate exposure and has recommended
following the ACGIH limit.
Chemical HLD
To avoid these glutaraldehyde issues, many health care
facilities have switched to using an OPA for HLD. The
recently introduced Rapicide® OPA/28 features the
fastest disinfection time, twice the reuse period of other
OPA brands and guaranteed materials compatibility.
Chemical HLD Safety
Exposure monitoring is not required; however, OPA is
still a potential irritant of eyes, skin, nose and other tissues
resulting in symptoms such as stinging, excessive tearing,
coughing, and sneezing. Like glutaraldehyde, OPA fixes
proteins, allows for biofilm formation and exposure causes
staining on linen, skin, instruments and AERs.
Training and Education
Personnel should receive initial training and competency
validation on procedures, chemicals used, and PPE and
should receive additional training when new equipment,
instruments, supplies, or procedures are introduced.
Employers must provide a written hazard communication
program, hazard evaluation, hazardous materials inventory,
Safety Data Sheets, labels on all containers of hazardous
chemicals, and employee training.
Quality Control Program
A quality control program should be established in all
areas where HLD is used. Quality control programs
should be documented and should include, but not be
limited to:
• Orientation programs
• Competency assurance
• Continuing education
• Quality control checks
• Investigation of adverse events
• Monitoring of solution replacement intervals
Quality Control - Manual Processes
Because most HLDs are reused, they must be tested and
recorded prior to each use to assure that they remain
above their MRC. Solution test strips must be FDA
cleared and used in accordance with the MFG’s IFU. If
the test strip fails, the HLD solution should not be used,
even if it’s within the reuse life.
Quality Control - Automated Equipment
In addition to the solution test strip, users of automated
equipment (AE), should check the printout at the start of
each cycle to verify that the cycle ID number has been
recorded and that the printer is functioning. At the end
of each cycle, the operator should examine the printout
and verify the cycle parameters were met and initial it to
allow later ID of the operator.
Special Note: AE that do not have printers should not be
used. With the exception of one proprietary AE that uses
peracetic acid, spore test strips or BIs are not available
for HLD processes.
QC Training & Recordkeeping
Healthcare personnel must be trained for proper use and
interpretation of solution test strips. Meticulous records
must be kept for both the HLD solution and the test
strips.
It is important to know…
All national survey organizations now audit healthcare
facilities for strict compliance with standards, guidelines,
and MFG’s instructions for use (IFU).
The Centers for Medicare & Medicaid Services (CMS)
has revised their Survey and Certification document
in 2009 to include more stringent audits in the areas
of infection control and sterilization.
Areas of emphasis include:
• Compliance with nationally recognized standards/documents.
•
•
•
Formal training in areas of infection control and sterilization.
Compliant cleaning, sterilization and monitoring procedures.
Established criteria for flash sterilization.
Reference:
CMS Infection Control Surveyor Worksheet, Exhibit 351, 2009.
In 2010, the Accreditation Association for Ambulatory
Healthcare (AAAHC) added an infection control chapter
to their standards handbook.
Infection control highlights included:
“Adhering to standards, guidelines, and manufacturer’s
instructions for cleaning, disinfection, and sterilization
of instruments, equipment, supplies, and implants.”
Reference:
OR Manager Magazine, Volume 26, Number 2, 2010
In 2011, Joint Commission surveyors received in-depth
training on sterilization processes. This education was
provided in collaboration with AAMI and included a
review of all aspects of the AAMI ST79 guideline on
steam sterilization. Thereafter, a similar educational
Module was delivered on HLD of endoscopes.
July 20, 2011 - Joint Commission Online
Focus on sterilization and high-level disinfection processes
HLD of Endoscopes
Flexible endoscopes are some
of the most complex devices
for HCWs to reprocess due to
their unique design and multiple
reprocessing steps.
Unfortunately, non-compliance
with MFG’s IFUs has led to a
number of bad outcomes and
unwanted media attention.
EXAMPLES:
•
Ottawa Public Health issued letters to
6,800 patients warning they may have
been exposed to hepatitis B, hepatitis
C or HIV after being treated with dirty
endoscope. (Oct, 2011)
•
PA hospital found negligent last year
for having improperly cleaned and HLD
endoscopes used in 2004 and 2005.
(July, 2012)
•
Quebec hospital failed to properly
reprocess an endoscope for past 8
years and asks 1,000 patients to come
in for HIV, hepatitis B and C testing.
(June, 2013)
•
The head of the Brant Community
Healthcare System issued an apology
to patient who was infected with
hepatitis C during an endoscopy. (Jan,
2014)
January 6, 2014
The Chicago Sun-Times reported
the largest outbreak of a superbug
– “CRE” in U.S. history, has been
confirmed at a hospital outside of
Chicago, IL.
The hospital – Advocate Lutheran General – linked these
critical patient infections of CRE (Carbapenem-Resistant
Enterobacteriaceae) to an ERCP (endoscopic retrograde
cholangiopancreatography) procedure that uses
fluoroscopy and an ERCP endoscope (or, duodenoscope).
Largest outbreak of dangerous bacteria
Between January and September of 2013, 243 patients
who had undergone ERCP were notified by the hospital
of their increased risk of CRE infection. Of the 114
patients who were tested, 38 were either infected or
colonized with CRE, with 28 not displaying symptoms
of infection. Unfortunately, 10 patients infected, some
them critically, has infections of the blood, urine or in
wounds.
This outbreak involving 38 patients (16% of the total
that underwent ECRP) is especially concerning because
CRE has a mortality rate as high as 50%.
Largest outbreak of dangerous bacteria
The CDC reported that a likely contributing factor to
this “superbug” outbreak at Advocate Lutheran General
Hospital (Park Ridge, IL) was the improper automated
cleaning and/or disinfection of the implicated ERCP
endoscopes.
The CDC reported that previous studies
have shown an association between ERCP
endoscopes and transmission of multidrugresistant bacteria; the design of the ERCP
endoscopes might pose a particular
challenge for cleaning and disinfection.
January 22, 2014
SEATTLE -- A breakdown in training left instruments
dirty and opened the doors to dangerous infections for
more than 100 patients at Seattle Children's Hospital..
In November, a technician discovered a poorly cleaned
colonoscope. Another turned up a few days later. The
scope's manufacturer spells out multi-step cleaning
instructions to avoid cross-contaminating patients. Dr.
Zerr says hospital procedures came up short on those
requirements.
Doctors say so far nobody has gotten sick, but the errors
launched a State Health Department investigation.
Reprocessing Flexible Endoscopes
Chemical HLD is recognized as the standard for the
reprocessing of flexible gastrointestinal endoscopes by
SGNA, ASGE, ACG, AGA, APIC and AST. Also, the
CDC and The Joint Commission recognize HLD as
appropriate for gastrointestinal endoscopes.
Standards of Infection Control in
Reprocessing of Flexible
Gastrointestinal Endoscopes
SGNA document was updated in 2012
Let’s review the HLD section…
After the necessary Pre-Cleaning, Leak Testing, Manual
Cleaning and Rinsing steps; this SGNA Standard details
both manual and AER HLD starting with Step 5.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
5. Manual HLD:
1. Completely immerse the endoscope and all
removable parts in a basin of HLD.
a. The basin must be of a size to accommodate the
endoscope without undue coiling, and must have a
tight-fitting lid to contain the chemical vapors.
b. To prevent damage, the endoscope should be not
be soaked with other sharp instruments.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
5. Manual HLD
2. Flush disinfectant into all channels of the
endoscope until it can be seen exiting the opposite
end of each channel. Take care that all channels are
filled with the chemical, and that no air pockets
remain within the channels.
SGNA Standards of Infection Control in
Reprocessing of Flexible Endoscopes
5A. Manual HLD:
a. Complete microbial destruction cannot occur
unless all surfaces are in complete contact with the
chemical.
b. Since internal contact cannot be visually confirmed
because of scope design, purging until a steady flow
of solution observed is necessary.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
5A. Manual HLD:
3. Cover the soaking basin with a tight-fitting lid
to minimize chemical vapor exposure.
Note that:
a. Exposure to chemical vapors may present a
health hazard.
b. The reprocessing area should have engineering
controls to ensure good air quality.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
5A. Manual HLD:
4. Soak the endoscope in the HLD solution for
the time/temperature required to achieve HLD.
Use a timer to verify soaking time.
5. Purge all channels completely with air before
removing the endoscope from the HLD solution.
Note that purging the channels preserves the
concentration and volume of the chemical, and
prevents exposure from dripping and spilling.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
5A. Manual HLD:
6. RINSE (same as after Manual Cleaning)
a. Thoroughly rinse the endoscope and all removable
parts with clean water to remove residual debris and
detergent.
b. Purge water from all channels using forced air.
Dry the exterior of the endoscope with a soft, lintfree cloth to prevent dilution of the liquid chemical
germicide used in subsequent steps.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
6. Drying:
a. Purge all channels with air until dry.
Note that:
1) Bacteria such as Pseudomonas aeruginosa have been
identified in both tap and filtered water, and may multiply
in a moist environment.
2) Avoid the use of excessively high air pressure which
can damage the internal channels of flexible endoscopes.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
6. Drying:
b. Flush all channels, including accessory channels,
with alcohol until the alcohol can be seen exiting the
opposite end of each channel.
1) 70% isopropyl alcohol is used to assist in drying the
interior channel surfaces.
2) It must be properly stored in a closed container
between uses, because when exposed to air, it rapidly
evaporates, and if less than recommended % level,
cannot be relied upon to assist in the drying process.
3) Alcohol flushes should be used even when sterile
water is used for rinsing.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
6. Drying:
c. Purge all channels with air. Note that alcohol
mixes with the remaining water on the channel
surfaces and acts to encourage evaporation of the
residual water as air flows through the channel.
d. Remove all channel adapters.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
6. Drying:
e. Dry the exterior of the endoscope with a soft,
clean lint-free towel.
f. Thoroughly rinse and dry all removable parts.
Do not attach removable parts (e.g. valves, etc.)
to the endoscope during storage as this can trap
liquid inside.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
7. Storage:
Hang the endoscope in a vertical position to facilitate
drying (with caps, valves, and other detachable components
removed, per MFG’s IFU).
a. The storage area should be clean, well
ventilated and dust free.
b. Correct storage will prevent damage.
c. The interval of storage before use has
limited investigations and warrants further
data.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
Automated HLD:
Automated Endoscope Reprocessors (AERs)
standardize the disinfection process and decrease
personnel exposure to HLDs.
NOTE:
It is necessary to follow
all steps for the manual
cleaning prior to using
an AER.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
Automated HLD:
An AER should have the following features:
a. Circulate fluids through all endoscope channels at an equal
pressure without trapping air. Channel flow sensors provide
an added measure of compliance.
b. Detergent and disinfectant cycles should be followed by
thorough rinse cycles and forced air to remove all used
solutions.
c. Disinfectant should not be diluted with any fluids.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
An AER should have the following features:
d. Machine should be self-disinfecting.
e. No residual water should remain in hoses and reservoirs.
f. Cycles for alcohol flushing and forced air drying are desirable.
g. Should also feature a self-contained or external water
filtration system.
In addition, a method to automatically store or print data
verification of cycle completion, is desirable.
SGNA Standards of Infection Control
in Reprocessing of Flexible Endoscopes
To use an AER:
1. Follow steps for manual cleaning of endoscope.
2. Prepare the AER according to the MFG’s guidelines.
3. Place the endoscope in the AER and attach all channel
adapters according to the MFG’s IFU.
a. The elevator channel of a duodenoscope has a very small
lumen. Since most AERs cannot generate pressure required to
force fluid through the lumen, a 2-5 ml syringe must be used
to manually reprocess (all steps) the elevator channel unless
the AER is validated to perfuse this channel.
To use an AER:
4. Place valves and other removable parts into the
soaking basin of the AER. Unless the AER has a
dedicated space for accessories, reprocess these
items separately.
5. If the AER has a cycle that uses enzymatic
detergent, it should be a product that is compatible
with the AER and the endoscope.
6. Set the AER for the appropriate time and
temperature depending on the chemical used.
7. Start the AER and allow it to complete all
cycles or phases. Note that if cycles or phases
are interrupted, HLD cannot be ensured and
the full cycle must be repeated.
To use an AER:
8. If AER does not include a final alcohol rinse,
this step should be done manually followed by
purging all the channels with air until dry.
The ERCP elevator and elevator channel must
be manually perfused and dried per MFG’s
instructions.
9. Drying and storage procedures are the same as
described in the manual disinfection section.
To get a free copy of the complete SGNA
document, go to: www.sgna.org
CONCLUSION
Best practice compliance is critical for patient, visitor
and employee safety when working with HLD. Due to
the complex nature of reprocessing, the ECRI Institute
has listed improperly reprocessed endoscopes/surgical
instruments as a top 10 health hazard for 2014. I trust
this program will assist you in your goal of compliance
with Best Practices for HLD!
THANK YOU!
SPSmedical Supply Corp.
Sterilization Products & Services
6789 W. Henrietta Road
Rush, NY 14543 USA
Fax: (585) 359-0167
Ph: (800) 722-1529
www.SPSmedical.com
© 2013 - 2014, SPSmedical Supply Corp.
Free CE programs are available in our
Sterilization Classroom on the
SPSmedical website.
References & Resources
American Conference of Governmental Industrial Hygienists, 1330 Kemper
Meadow Drive, Cincinnati, OH 45240, 513-742-2020
Association for the Advancement of Medical Instrumentation. (2013). Chemical
sterilization and high level disinfection in health care facilities (ANSI/AAMI
ST58:2013). Arlington, VA.
Association of periOperative Registered Nurses. (2013 Edition). Recommended
Practices for High-Level Disinfection. Denver, CO.
ECRI Institute. ECRI Releases Top 10 Health Technology Hazards for 2014.
November 4, 2013. Plymouth Meeting, PA.
Occupational Health and Safety Administration (OSHA). (2012). Hazardous waste
and emergency response. www.osha.gov
Society of Gastroenterology Nurses and Association, Inc. (2012) Standards of
Infection Control in Reprocessing of Flexible Gastrointestinal Endoscopes.
www.sgna.org