Environmental Cleaning & Disinfectants
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Questions and Answers

Equipment that generates dust, such as feather dusters, should be used in healthcare facilities.

False (B)

Spray bottles should be used in healthcare facilities to minimize aerosol generation.

False (B)

Cleaning cloths should be chosen based on their purpose, availability, and effectiveness.

True (A)

Which of the following should be cleaned last when cleaning a bathroom?

<p>Toilet (D)</p> Signup and view all the answers

The flow of cleaning should be from dirty areas to clean areas.

<p>False (B)</p> Signup and view all the answers

Dusting techniques should disperse dust to avoid unnecessary wiping.

<p>False (B)</p> Signup and view all the answers

High-touch surfaces should be cleaned more frequently than low-touch surfaces.

<p>True (A)</p> Signup and view all the answers

A functional area is defined as any space within a healthcare facility where cleaning occurs.

<p>True (A)</p> Signup and view all the answers

What factors determine the risk classification of a functional area?

<p>The risk classification of a functional area is determined by considering the probability of contamination, the vulnerability of patients to infection, and the potential for exposure to infection.</p> Signup and view all the answers

A higher risk classification indicates that a functional area should be cleaned less frequently.

<p>False (B)</p> Signup and view all the answers

Standard cleaning is the minimum level of cleaning required for all functional areas, regardless of perceived cleanliness.

<p>True (A)</p> Signup and view all the answers

Transmission-based cleaning is only required for patients with confirmed or suspected infections.

<p>True (A)</p> Signup and view all the answers

Which of the following is NOT a type of transmission-based cleaning?

<p>Routine cleaning (B)</p> Signup and view all the answers

Discharge cleaning should be conducted only after a patient has passed away.

<p>False (B)</p> Signup and view all the answers

When should spot and spill cleaning be performed?

<p>Spot and spill cleaning should be performed when elements are visibly soiled or when there is a spillage of bodily fluids, such as blood, vomit, urine, or feces.</p> Signup and view all the answers

Sterilization is the destruction of all microorganisms, including bacterial spores.

<p>True (A)</p> Signup and view all the answers

Disinfection kills only vegetative forms of microorganisms.

<p>True (A)</p> Signup and view all the answers

An outbreak is a term used for a single isolated case of an infection.

<p>False (B)</p> Signup and view all the answers

Which of the following is a characteristic of a pandemic:?

<p>The disease spreads over several countries or continents. (D)</p> Signup and view all the answers

An endemic disease is one that is constantly present in a particular region or community.

<p>True (A)</p> Signup and view all the answers

The initial stage of a disease outbreak is often small and unnoticed.

<p>True (A)</p> Signup and view all the answers

The occurrence of two or more similar cases related to place and time is considered a cluster, which may be classified as an outbreak.

<p>True (A)</p> Signup and view all the answers

In a common source outbreak, cases occur due to a shared exposure, such as an operation or the consumption of contaminated food.

<p>True (A)</p> Signup and view all the answers

An epidemic curve is a graph that illustrates cases of a disease over time, helping to determine the source of the infection.

<p>True (A)</p> Signup and view all the answers

The investigation of an outbreak should begin with the recognition of an increased number of cases or the prevalence of an organism.

<p>True (A)</p> Signup and view all the answers

Immediate control measures, such as isolation and handwashing, should be taken only after the outbreak has been confirmed.

<p>False (B)</p> Signup and view all the answers

The primary goal of an outbreak investigation is to identify the source of the outbreak and implement specific control measures.

<p>True (A)</p> Signup and view all the answers

Microbiological investigations are not necessary for identifying the causative organism during an outbreak.

<p>False (B)</p> Signup and view all the answers

Monitoring for further cases should be discontinued once the outbreak has been resolved.

<p>False (B)</p> Signup and view all the answers

An outbreak investigation should be conducted by healthcare professionals only, without involving the administration and other departments.

<p>False (B)</p> Signup and view all the answers

The goal of standard cleaning is to maintain basic hygiene, while transmission-based cleaning addresses specific infection control concerns.

<p>True (A)</p> Signup and view all the answers

Strict handwashing is often the single most important factor in controlling the spread of infections.

<p>True (A)</p> Signup and view all the answers

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Flashcards

Cluster or Outbreak

A collection of two or more similar cases of infection occurring in the same place and time. Indicates a possible outbreak and requires further investigation.

Endemic Disease

The constant presence of a disease within a specific region or community.

Epidemic

A sudden increase in cases of a disease above what is normally expected within a population or area.

Pandemic

An epidemic that has spread over multiple countries or continents, affecting a large number of people.

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Sterilization

The destruction of ALL micro-organisms, including bacterial spores. This is essential for medical devices entering sterile body sites and parenteral fluids.

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Disinfection

A process that kills vegetative (growing) forms of pathogenic organisms.

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Disinfectants commonly used

The most commonly used disinfectants are sodium hypochlorite (bleach) and 70% alcohol.

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Functional Area

A functional area in a healthcare facility is any area requiring cleaning, including operating rooms, wards, cafeterias, and more.

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Risk Classification of Functional Areas

The classification of functional areas based on their risk of contamination, patient vulnerability, and potential for exposure to infection.

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Factors influencing risk classification

The risk classification of a functional area depends on the probability of contamination, patient vulnerability, and potential for exposure to infection.

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Determining Risk Score

Risk classification of functional areas is based on a score determined by the factors of probability of contamination, patient vulnerability, and potential for exposure to infection. Higher scores lead to higher risk categories (high, moderate, low).

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Cleaning Frequency & Risk Classification

Areas classified as high risk require more frequent cleaning than moderate or low risk areas. For example, ICUs are cleaned more often than general wards.

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Element (In Environmental Cleaning)

Any item in a healthcare facility that requires cleaning, such as surfaces, furniture, or patient care equipment.

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Cleaning Frequency & Hand Contact

Cleaning frequency for elements depends on the level of hand-contact. High touch surfaces, such as light switches, require more frequent cleaning than low touch surfaces, like floors.

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Cleaning Method & Contamination

The cleaning method for each element varies depending on the potential for contamination. For example, toilets and showers require cleaning with detergent and disinfectant, while bed rails only need routine detergent cleaning.

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Standard Clean

The minimum scheduled cleaning required in all functional areas, regardless of visual cleanliness. This is a routine and continuous cleaning process.

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Transmission-Based Clean

Specialized cleaning procedures performed when patients are on transmission-based precautions, like those with confirmed or suspected infections.

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Single Case(s) Transmission-Based Clean

A transmission-based clean performed when there is a single or multiple unrelated cases of the same infection within an area. Cleaning is intensified in the localized area of the patient or patients.

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Outbreak Clean

A transmission-based clean performed during an outbreak of multiple cases of the same infection. Cleaning is intensified for the whole functional area to prevent further spread.

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Discharge Clean

Cleaning required after a patient is discharged, transferred, or deceased. Focused on the immediate patient care area to prevent transfer of infection to the next patient.

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Spot & Spill Clean

Cleaning performed immediately whenever an element appears visibly soiled or if there is a spillage of bodily fluids. A rapid and focused response to immediate contamination.

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Investigation of an Outbreak

The process of investigating an outbreak involves recognizing the occurrence, verifying the diagnosis, and taking steps to understand the cause of the infection. This helps to control the spread and prevent further cases.

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Epidemic Curve

A graphic representation of the cases of a disease during an outbreak, plotted against time of onset. Helps to identify the source of infection and probable incubation period.

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Control Measures

Control measures taken to prevent the spread of infection during an outbreak investigation. These measures aim to stop the infection from spreading further.

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Searching for additional cases

The process of examining clinical and microbiological records to identify additional cases of infection during an outbreak investigation.

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Line Listings

A detailed summary of patient information, including infection details, place and time of occurrence, used during an outbreak investigation.

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Microbiological Investigations

Microbiological investigations during an outbreak focus on identifying the causative organism and its spread. This involves culturing samples from cases, carriers, and the environment, and performing epidemiological typing.

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Testing the Hypothesis

A case control study, cohort study, or microbiological study that is used to test a hypothesis about the cause of an outbreak.

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Specific Control Measures

Targeted measures taken to control the spread of infection once the cause of the outbreak has been identified. These may include specific medications, isolation, or enhanced cleaning.

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Report on Outbreak Investigation

A concise report summarizing the outbreak investigation findings, presented to relevant departments and hospital administrators.

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Study Notes

Environmental Cleaning & Disinfectants

  • All cleaning equipment must be suitable for its intended purpose, cleaned thoroughly, and stored dry to maintain good hygiene
  • Equipment generating dust, like feather dusters, is not permitted
  • Avoid spray bottles or equipment creating aerosols during cleaning, as chemicals in aerosols can irritate eyes and mucous membranes
  • Use squeeze bottles that apply disinfectants directly to surfaces or cloths, minimizing aerosol generation
  • Use appropriate cleaning cloths, ensuring a sufficient quantity for each area to prevent cross-contamination
  • Reusable cloths should be laundered daily according to standard laundry procedures, or single-use cloths can be used in areas with higher contamination risk
  • Detergent and/or disinfectant wipes are useful for small items, like equipment or high-touch surfaces in clinical outpatient areas (e.g., radiology)
  • Wipes are not suitable for large areas; many are needed, are expensive and not effective

Cleaning Techniques

  • Cleaning should proceed from relatively clean areas to dirtier ones
  • Areas with low or light soiling are cleaned before high-touch, heavily soiled areas (e.g., cleaning a bathroom: clean the sink and countertop first, then the toilet)
  • Clean from high to low areas (dust high surfaces initially) and use damp cloths to avoid dispersing dust during cleaning
  • Avoid reusing cloths by dipping them repeatedly into the same cleaning bucket, preventing contamination of clean cloths
  • “High-touch surfaces,” require more cleaning cloths

Cleaning Schedule

  • A cleaning schedule should be determined based on the risk level of functional areas
  • High-risk areas (e.g., intensive care units, operating rooms) require more frequent cleaning than lower-risk areas (e.g., administrative offices)
  • Cleaning frequency should be elevated in cases of outbreaks. The outbreak status is temporary and adjusted after the situation settles
  • In single-case outbreaks, the method for cleaning is intensified in the isolated area
  • In outbreak circumstances involving multiple cases sharing a similar infection, cleaning intensity extends across the entire functional area

Sterilization and Disinfection

  • Sterilization destroys all microorganisms, including spores
  • Sterilization can be achieved through physical (heat) or chemical (ethylene oxide) methods
  • Sterilization is necessary for medical devices interacting with sterile body sites and parenteral fluids/medications
  • Prior to sterilization, equipment should be cleaned to remove visible soiling
  • Disinfection kills vegetative (growing) pathogens
  • Sodium hypochlorite or 70% alcohol are common disinfectants

Investigation of an Outbreak

  • An outbreak is characterized by more cases than expected in an area or time frame
  • An epidemic is the more widespread increase in cases
  • A pandemic is a widespread epidemic across multiple countries
  • Identifying and confirming an outbreak is essential for controlling its spread
  • Steps to Investigate an outbreak include: recognizing the situation and the potential infectious agent, gathering data, determining the possible cause and implementing control measures to stop the spread of the infectious disease

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Description

This quiz focuses on best practices for environmental cleaning and disinfectants. It covers essential guidelines for maintaining hygiene, including suitable cleaning equipment, handling cleaning agents, and cross-contamination prevention. Test your knowledge on effective cleaning protocols in clinical settings.

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