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| Section | Weight | Objectives |
|---|---|---|
| Management and Communication | 10-13% | |
| Cleaning, Sterilization, Disinfection, Asepsis | 10-13% | |
| Preventing/Controlling the Transmission of Infectious Agents | 17-19% | |
| Employee/Occupational Health | 10-13% | |
| Education and Research | 6-9% | |
| Environment of Care | 10-13% | |
| Surveillance and Epidemiologic Investigation | 22-26% | |
| Identification of Infectious Disease Processes | 17-19% |
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質問 # 226
An infection preventionist has been informed that a patient admitted 2 days ago has been diagnosed with chickenpox. Ten employees have had contact with this patient. Those employees with significant exposure may be furloughed after exposure. "Significant exposure" is considered
正解：C
解説：
Chickenpox (varicella) is primarily spread throughairborne transmission, and exposure is defined bybeing in the same airspacewith a contagious person (from 1-2 days before rash onset until lesions are crusted), even if briefly.
* TheAPIC Textstates:
"Significant exposure is defined as being in the same room or airspace during the period of infectivity, regardless of duration".
* This reflects airborne precaution definitions and CDC exposure management guidelines for varicella.
References:
APIC Text, 4th Edition, Chapter 105 - Immunization of Healthcare Personnel
質問 # 227
The infection preventionist (IP) is working with Environmental Services to evaluate a new disinfectant for purchase by the facility. With which of the following should the IP be MOST concerned?
正解：D
解説：
When evaluating a new disinfectant, theinfection preventionist's primary concern must be the safety and effectiveness of the product. This includes ensuring the product is EPA-registered, effective against targeted pathogens, safe for both the environment and users, and compliant with regulatory guidelines.
* From theAPIC/JCR Workbook, key considerations include:
"Organizations should evaluate each product to ensure that it can be used safely and include a review of dilutions, storage, shelf life, PPE needed, and disposal and ventilation requirements to ensure that OSHA, EPA, or local requirements are met".
* TheCBIC Study Guidereinforces that:
"Safety and efficacy are critical factors in evaluating new products, with particular emphasis on infection prevention and user safety".
* The other options, while relevant, are not the most critical factors in determining product adoption from an infection control standpoint.
References:
APIC/JCR Workbook, 4th Edition, Chapter 8 - Disinfection and Sterilization CBIC Study Guide, 6th Edition, Product Evaluation Section
質問 # 228
What question would be appropriate for an infection preventionist to ask when reviewing the discussion section of an original article?
正解：A
解説：
When reviewing the discussion section of an original article, an infection preventionist must focus on critically evaluating the interpretation of the study findings, their relevance to infection control, and their implications for practice. The discussion section typically addresses the meaning of the results, compares them to existing literature, and considers limitations or alternative interpretations. The appropriate question should align with the purpose of this section and reflect the infection preventionist's need to assess the validity and applicability of the research. Let's analyze each option:
* A. Was the correct sample size and analysis method chosen?: This question pertains to the methodology section of a research article, where the study design, sample size, and statistical methods are detailed.
While these elements are critical for assessing the study's rigor, they are not the primary focus of the discussion section, which interprets results rather than re-evaluating the study design. An infection preventionist might ask this during a review of the methods section, but it is less relevant here.
* B. Could alternative explanations account for the observed results?: The discussion section often explores whether the findings can be explained by factors other than the hypothesized cause, such as confounding variables, bias, or chance. This question is highly appropriate for an infection preventionist, as it encourages a critical assessment of whether the results truly support infection control interventions or if other factors (e.g., environmental conditions, patient factors) might be responsible.
This aligns with CBIC's emphasis on evidence-based practice, where understanding the robustness of conclusions is key to applying research to infection prevention strategies.
* C. Is the study question important, appropriate, and stated clearly?: This question relates to the introduction or background section of an article, where the research question and its significance are established. While important for overall study evaluation, it is not specific to the discussion section, which focuses on interpreting results rather than revisiting the initial question. An infection preventionist might consider this earlier in the review process, but it does not fit the context of the discussion section.
* D. Are criteria used to measure the exposure and the outcome explicit?: This question is relevant to the methods section, where the definitions and measurement tools for exposures (e.g., a specific intervention) and outcomes (e.g., infection rates) are described. The discussion section may reference these criteria but focuses more on their implications rather than their clarity. This makes it less appropriate for the discussion section specifically.
The discussion section is where authors synthesize their findings, address limitations, and consider alternative explanations, making option B the most fitting. For an infection preventionist, evaluating alternative explanations is crucial to ensure that recommended practices (e.g., hand hygiene protocols or sterilization techniques) are based on solid evidence and not confounded by unaddressed variables. This critical thinking is consistent with CBIC's focus on applying research to improve infection control outcomes.
CBIC Infection Prevention and Control (IPC) Core Competency Model (updated 2023), Domain I:
Identification of Infectious Disease Processes, which emphasizes critical evaluation of research evidence.
CBIC Examination Content Outline, Domain V: Management and Communication, which includes assessing the validity of research findings for infection control decision-making.
質問 # 229
How can infection prevention and control programs BEST implement recommendations across different departments?
正解：B
解説：
The CBIC Certified Infection Control Exam Study Guide (6th edition) emphasizes that successful implementation of infection prevention recommendations depends on effective communication, engagement, and education tailored to the audience. Healthcare departments differ significantly in workflow, patient population, risk profile, and daily practices. Therefore, providing targeted, understandable education to staff is the most effective strategy to ensure recommendations are adopted and sustained.
Option A reflects best practice by aligning infection prevention guidance with the specific roles and responsibilities of staff in each department. Education that uses relevant examples, scenarios, and language improves comprehension, promotes buy-in, and supports behavior change. The Study Guide highlights that adult learners benefit most from education that is practical, interactive, and clearly applicable to their work environment.
Options B and C are ineffective because generic or non-customized approaches often fail to address department-specific challenges and may lead to confusion or poor compliance. Avoiding department-specific training ignores variations in risk and undermines accountability. Option D relies solely on enforcement rather than collaboration, which can result in resistance and decreased adherence.
For the CIC exam, this question reinforces that infection prevention programs function best when they act as educators and partners, not just policy enforcers. Tailored education empowers staff, enhances compliance, and ultimately improves patient safety outcomes across diverse healthcare settings.
質問 # 230
An employee is presenting to Occupational Health for clearance prior to starting work at a healthcare facility.
They have a history of having received the Bacillus Calmette-Guérin (BCG) vaccination. What is the preferred methodology for pre-work clearance?
正解：A
解説：
The preferred methodology for pre-work clearance in this scenario is the interferon-gamma release assay (IGRA), making option C the correct choice. This conclusion is supported by the guidelines from the Certification Board of Infection Control and Epidemiology (CBIC), which align with recommendations from the Centers for Disease Control and Prevention (CDC) for tuberculosis (TB) screening in healthcare workers.
The employee's history of receiving the Bacillus Calmette-Guérin (BCG) vaccination, a vaccine commonly used in some countries to prevent severe forms of TB, is significant because it can cause false-positive results in the traditional Tuberculin skin test (TST) due to cross-reactivity with BCG antigens (CBIC Practice Analysis, 2022, Domain I: Identification of Infectious Disease Processes, Competency 1.3 - Apply principles of epidemiology).
The IGRA, such as the QuantiFERON-TB Gold test, measures the release of interferon-gamma from T-cells in response to specific TB antigens (e.g., ESAT-6 and CFP-10) that are not present in BCG or most non- tuberculous mycobacteria. This makes it a more specific and reliable test for detecting latent TB infection (LTBI) in individuals with a history of BCG vaccination, avoiding the false positives associated with the TST.
The CDC recommends IGRA over TST for BCG-vaccinated individuals when screening for TB prior to healthcare employment (CDC Guidelines for Preventing Transmission of Mycobacterium tuberculosis, 2005, updated 2019).
Option A (referral to tuberculosis clinic) is a general action but not a specific methodology for clearance; it may follow testing if results indicate further evaluation is needed. Option B (initial chest radiograph) is used to detect active TB disease rather than latent infection and is not a primary screening method for pre-work clearance, though it may be indicated if IGRA results are positive. Option D (two-step purified protein derivative-based Tuberculin skin test) is less preferred because the BCG vaccination can lead to persistent cross-reactivity, reducing its specificity and reliability in this context. The two-step TST is typically used to establish a baseline in unvaccinated individuals with potential prior exposure, but it is not ideal for BCG- vaccinated individuals.
The IP's role includes ensuring accurate TB screening to protect both the employee and patients, aligning with CBIC's focus on preventing transmission of infectious diseases in healthcare settings (CBIC Practice Analysis, 2022, Domain III: Infection Prevention and Control, Competency 3.2 - Implement measures to prevent transmission of infectious agents).
References: CBIC Practice Analysis, 2022, Domain I: Identification of Infectious Disease Processes, Competency 1.3 - Apply principles of epidemiology; Domain III: Infection Prevention and Control, Competency 3.2 - Implement measures to prevent transmission of infectious agents. CDC Guidelines for Preventing Transmission of Mycobacterium tuberculosis, 2005, updated 2019.
質問 # 231
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