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| Section | Objectives |
|---|---|
| Topic 1: Education, Consultation, and Research | - Evidence-based practice and guideline interpretation - Staff education strategies |
| Topic 2: Infection Prevention and Control Program Management | - Program development and leadership - Policy and guideline implementation - Regulatory compliance |
| Topic 3: Environment of Care | - Air and water quality management - Healthcare facility design and risk reduction |
| Topic 4: Surveillance and Epidemiologic Investigation | - Outbreak investigation and response - Data collection and analysis - Healthcare-associated infection surveillance methods |
| Topic 5: Occupational Health | - Immunization and post-exposure protocols - Healthcare worker exposure prevention |
| Topic 6: Cleaning, Disinfection, and Sterilization | - Sterilization methods and validation - Environmental cleaning standards - High-level disinfection practices |
| Topic 7: Identification of Infectious Disease Processes | - Chain of infection and transmission routes - Host susceptibility factors - Pathogenesis of infectious diseases |
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NEW QUESTION # 75
Peripherally inserted central catheter (PICC)-associated bloodstream infections (BSIs) have been increasing over the past four months. Which of the following interventions is MOST likely to have contributed to the increase?
Answer: A
Explanation:
Peripherally inserted central catheter (PICC)-associated bloodstream infections (BSIs) are a significant concern in healthcare settings, and identifying factors contributing to their increase is critical for infection prevention. The Certification Board of Infection Control and Epidemiology (CBIC) emphasizes the
"Surveillance and Epidemiologic Investigation" and "Prevention and Control of Infectious Diseases" domains, which align with the Centers for Disease Control and Prevention (CDC) guidelines for preventing intravascular catheter-related infections. The question asks for the intervention most likely to have contributed to the rise in PICC-associated BSIs over four months, requiring an evaluation of each option based on evidence-based practices.
Option C, "Replacement of the intravenous administration sets every 72 hours," is the most likely contributor to the increase. The CDC's "Guidelines for the Prevention of Intravascular Catheter-Related Infections" (2017) recommend that intravenous administration sets (e.g., tubing for fluids or medications) be replaced no more frequently than every 72-96 hours unless clinically indicated (e.g., contamination or specific therapy requirements). Frequent replacement, such as every 72 hours as a routine practice, can introduce opportunities for contamination during the change process, especially if aseptic technique is not strictly followed. Studies cited in the CDC guidelines, including those by O'Grady et al. (2011), indicate that unnecessary manipulation of catheter systems increases the risk of introducing pathogens, potentially leading to BSIs. A change to a 72- hour replacement schedule, if not previously standard, could explain the observed increase over the past four months.
Option A, "Use of chlorhexidine skin antisepsis during insertion of the PICC," is a recommended practice to reduce BSIs. Chlorhexidine, particularly in a 2% chlorhexidine gluconate with 70% alcohol solution, is the preferred skin antiseptic for catheter insertion due to its broad-spectrum activity and residual effect, as supported by the CDC (2017). This intervention should decrease, not increase, infection rates, making it an unlikely contributor. Option B, "Daily bathing adult intensive care unit patients with chlorhexidine," is another evidence-based strategy to reduce healthcare-associated infections, including BSIs, by decolonizing the skin of pathogens like Staphylococcus aureus. The CDC and SHEA (Society for Healthcare Epidemiology of America) guidelines (2014) endorse chlorhexidine bathing in intensive care units, suggesting it should lower, not raise, BSI rates. Option D, "Use of a positive pressure device on the PICC," aims to prevent catheter occlusion and reduce the need for frequent flushing, which could theoretically decrease infection risk by minimizing manipulation. However, there is no strong evidence linking positive pressure devices to increased BSIs; if improperly used or maintained, they might contribute marginally, but this is less likely than the impact of frequent tubing changes.
The CBIC Practice Analysis (2022) and CDC guidelines highlight that deviations from optimal catheter maintenance practices, such as overly frequent administration set replacements, can increase infection risk.
Given the four-month timeframe and the focus on an intervention's potential negative impact, Option C stands out as the most plausible contributor due to the increased manipulation and contamination risk associated with routine 72-hour replacements.
References:
CBIC Practice Analysis, 2022.
CDC Guidelines for the Prevention of Intravascular Catheter-Related Infections, 2017.
O'Grady, N. P., et al. (2011). Guidelines for the Prevention of Intravascular Catheter-Related Infections.
Clinical Infectious Diseases.
SHEA Compendium, Strategies to Prevent Central Line-Associated Bloodstream Infections, 2014.
NEW QUESTION # 76
During an outbreak investigation of Pseudomonas aeruginosa in a medical intensive care unit (ICU), what is a critical INITIAL step the infection preventionist (IP) should take to better understand an investigation process and this organism?
Answer: A
Explanation:
The CBIC Certified Infection Control Exam Study Guide (6th edition) emphasizes that a critical initial step in any outbreak investigation is for the infection preventionist to develop a strong understanding of the organism involved, its epidemiology, reservoirs, modes of transmission, and previously reported outbreak sources.
Conducting a literature search of similar outbreak investigations provides this foundational knowledge and helps guide a structured, evidence-based investigation.
Pseudomonas aeruginosa is an opportunistic, water-associated pathogen frequently implicated in healthcare- associated outbreaks, particularly in ICUs. Prior outbreak investigations described in the literature commonly identify sources such as sink drains, faucets, respiratory equipment, humidifiers, contaminated medications, and inadequate reprocessing of medical devices. Reviewing published investigations allows the IP to anticipate likely sources, identify high-yield environmental sampling locations, and avoid unnecessary or unfocused interventions.
Options A and D may become appropriate later, depending on outbreak magnitude and reporting requirements, but they are not the initial step. Option B can be helpful but relies on anecdotal experience rather than systematic evidence. The Study Guide stresses that outbreak investigations should begin with background research and hypothesis generation, followed by targeted data collection and analysis.
For the CIC exam, this question reinforces that effective outbreak management starts with understanding what is already known, making a literature review the most appropriate initial action.
NEW QUESTION # 77
What rate is expressed by the number of patients who acquire infections over a specified time period divided by the population at risk of acquiring an infection during that time period?
Answer: C
Explanation:
The incidence rate measures new cases of infection in a population over a defined time period using the formula:
Why the Other Options Are Incorrect?
B). Disease specific - Refers to infections caused by a particular pathogen, not the general rate of new infections.
C). Point prevalence - Measures existing cases at a specific point in time, not new cases.
D). Period prevalence - Includes both old and new cases over a set period, unlike incidence, which only considers new cases.
CBIC Infection Control Reference
APIC defines incidence rate as the number of new infections in a population over a given period.
NEW QUESTION # 78
Which of the following BEST reduces the risk of infection in patients undergoing peritoneal dialysis?
Answer: C
Explanation:
The CBIC Certified Infection Control Exam Study Guide (6th edition) emphasizes that the most effective strategy for reducing infection risk in peritoneal dialysis (PD) patients is ensuring optimal conditions at the time of catheter insertion. Placement of the peritoneal dialysis catheter in the operating room provides a controlled, sterile environment that minimizes microbial contamination and significantly reduces the risk of early peritonitis and exit-site infections.
Peritoneal dialysis-associated infections are most often linked to contamination during catheter insertion or manipulation. Performing catheter insertion in the operating room allows for strict adherence to aseptic technique, appropriate airflow controls, surgical hand antisepsis, and use of sterile instruments-all of which are essential infection prevention measures highlighted in the Study Guide.
The other options are less effective or not recommended. Daily dressing changes (Option A) may actually increase manipulation of the exit site and raise infection risk if not clinically indicated. Weekly surveillance cultures (Option B) are not recommended, as they do not prevent infection and may lead to unnecessary antimicrobial use. Irrigating catheters with antimicrobials (Option D) is discouraged because it has not been shown to reduce infection rates and may contribute to antimicrobial resistance.
For the CIC exam, it is important to recognize that prevention of peritoneal dialysis-associated infection begins with proper catheter placement under optimal sterile conditions, making operating room insertion the best answer.
NEW QUESTION # 79
An adult with an incomplete vaccination history presents with an uncontrollable, rapid and violent cough, fever, and runny nose. Healthcare personnel should suspect
Answer: A
Explanation:
The correct answer is A, "Pertussis," as healthcare personnel should suspect this condition based on the presented symptoms and the patient's incomplete vaccination history. According to the Certification Board of Infection Control and Epidemiology (CBIC) guidelines, pertussis, caused by the bacterium Bordetella pertussis, is characterized by an initial phase of mild respiratory symptoms (e.g., runny nose, low-grade fever) followed by a distinctive uncontrollable, rapid, and violent cough, often described as a "whooping" cough.
This presentation is particularly concerning in adults with incomplete vaccination histories, as the pertussis vaccine's immunity (e.g., DTaP or Tdap) wanes over time, increasing susceptibility (CBIC Practice Analysis,
2022, Domain I: Identification of Infectious Disease Processes, Competency 1.1 - Identify infectious disease processes). Pertussis is highly contagious and poses a significant risk in healthcare settings, necessitating prompt suspicion and isolation to prevent transmission.
Option B (rhinovirus) typically causes the common cold with symptoms like runny nose, sore throat, and mild cough, but it lacks the violent, paroxysmal cough characteristic of pertussis. Option C (bronchitis) may involve cough and fever, often due to viral or bacterial infection, but it is not typically associated with the rapid and violent cough pattern or linked to vaccination status in the same way as pertussis. Option D (adenovirus) can cause respiratory symptoms, including cough and fever, but it is more commonly associated with conjunctivitis or pharyngitis and does not feature the hallmark violent cough of pertussis.
The suspicion of pertussis aligns with CBIC's emphasis on recognizing infectious disease patterns to initiate timely infection control measures, such as droplet precautions and prophylaxis for exposed individuals (CBIC Practice Analysis, 2022, Domain III: Infection Prevention and Control, Competency 3.2 - Implement measures to prevent transmission of infectious agents). Early identification is critical, especially in healthcare settings, to protect vulnerable patients and staff, and the incomplete vaccination history supports this differential diagnosis given pertussis's vaccine-preventable nature (CDC Pink Book: Pertussis, 2021).
References: CBIC Practice Analysis, 2022, Domain I: Identification of Infectious Disease Processes, Competency 1.1 - Identify infectious disease processes; Domain III: Infection Prevention and Control, Competency 3.2 - Implement measures to prevent transmission of infectious agents. CDC Pink Book:
Pertussis, 2021.
NEW QUESTION # 80
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