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| Section | Weight | Objectives |
|---|---|---|
| Management and Communication | 10-13% | |
| Education and Research | 6-9% | |
| Preventing/Controlling the Transmission of Infectious Agents | 17-19% | |
| Employee/Occupational Health | 10-13% | |
| Surveillance and Epidemiologic Investigation | 22-26% | |
| Cleaning, Sterilization, Disinfection, Asepsis | 10-13% | |
| Environment of Care | 10-13% | |
| Identification of Infectious Disease Processes | 17-19% |
Many users report to us that they are very fond of writing their own notes while they are learning. This will enhance their memory and make it easier to review. Our CIC exam questions have created a PDF version of the CIC practice material to meet the needs of this group of users. You can print the PDF version of the CIC learning guide so that you can carry it with you. As long as you have time, you can take it out to read and write your own experience.
NEW QUESTION # 282
A surgeon approaches an infection preventionist (IP) concerned that there are more surgical site infections (SSIs) in hysterectomies performed in the facility's stand-alone surgery center than in those performed in the acute-care operating room. The IP should
Answer: A
Explanation:
The infection preventionist (IP) should start by comparing SSI rates between the acute-care operating room and the stand-alone surgery center. This direct comparison will help determine if there is a statistically significant difference in infection rates and guide further investigation.
Step-by-Step Justification:
* Identify Trends:
* Compare SSI rates between the two locations over a set period to identify patterns.
* Assess Contributing Factors:
* Look at factors such as patient population, antibiotic prophylaxis, surgical techniques, environmental controls, and adherence to infection prevention protocols.
* Validate Surveillance Data:
* Ensure that consistent SSI surveillance methodologies are used at both locations to avoid discrepancies.
Why Other Options Are Incorrect:
* A. Initiate prospective surveillance for SSIs in hysterectomies performed at the stand-alone surgery center:
* Prospective surveillance is beneficial but does not immediately answer the surgeon's concern about existing infections.
* B. Compare the most recent post-hysterectomy SSI surveillance data from the surgery center with those of the previous 12 months:
* This approach only looks at trends at the surgery center without comparing it to the acute-care setting.
* C. Initiate post-hysterectomy SSI surveillance in hysterectomy patients to verify accuracy of current surveillance methodology:
* This step is secondary. Before initiating new surveillance, a direct comparison should be made using existing data.
CBIC Infection Control References:
* APIC Text, "Surgical Site Infection Surveillance and Prevention Measures".
NEW QUESTION # 283
An infection preventionist (IP) is notified that a patient who underwent an endoscopic brain biopsy the night before has been diagnosed with prion disease. Because the diagnosis was thought to be unlikely but possible at the time of the biopsy, the endoscope was sequestered. The endoscope manufacturer's instructions for reprocessing indicate that the endoscope can be reprocessed using high-level disinfection or low-temperature sterilization. The IP should recommend that the endoscope be:
Answer: A
Explanation:
The CBIC Certified Infection Control Exam Study Guide (6th edition) identifies prion diseases (such as Creutzfeldt-Jakob disease) as unique and extremely challenging from an infection prevention standpoint due to the extraordinary resistance of prions to conventional disinfection and sterilization methods. Prions are not destroyed by standard high-level disinfection, low-temperature sterilization, ethylene oxide, or hydrogen peroxide gas plasma, even when manufacturer instructions for use suggest these methods for routine pathogens.
Invasive neurologic procedures involving high-risk tissues (brain, spinal cord, posterior eye) pose the greatest transmission risk. When a reusable device such as an endoscope is used on high-risk tissue in a patient with known or suspected prion disease, and the device cannot tolerate validated prion-inactivation protocols, the Study Guide recommends removal from service and disposal.
While harsh chemical treatments such as 1N sodium hydroxide or high-concentration bleach combined with extended steam sterilization may be effective for heat-resistant surgical instruments, flexible endoscopes and similar devices cannot safely undergo these processes without damage. Therefore, reprocessing is not acceptable in this scenario.
Autoclaving alone and low-temperature sterilization methods are ineffective against prions. As a result, the safest and recommended action is to bag the device as biohazardous waste and discard it, preventing any risk of iatrogenic transmission.
For the CIC exam, this question tests recognition that manufacturer IFUs do not supersede prion-specific infection prevention guidance, and patient safety requires device destruction when prion exposure cannot be reliably mitigated.
NEW QUESTION # 284
Which of the following stains is used to identify mycobacteria?
Answer: D
Explanation:
Mycobacteria, including species such as Mycobacterium tuberculosis and Mycobacterium leprae, are a group of bacteria known for their unique cell wall composition, which contains a high amount of lipid-rich mycolic acids. This characteristic makes them resistant to conventional staining methods and necessitates the use of specialized techniques for identification. The acid-fast stain is the standard method for identifying mycobacteria in clinical and laboratory settings. This staining technique, developed by Ziehl-Neelsen, involves the use of carbol fuchsin, which penetrates the lipid-rich cell wall of mycobacteria. After staining, the sample is treated with acid-alcohol, which decolorizes non-acid-fast organisms, while mycobacteria retain the red color due to their resistance to decolorization-hence the term "acid-fast." This property allows infection preventionists and microbiologists to distinguish mycobacteria from other bacteria under a microscope.
Option B, the Gram stain, is a common differential staining technique used to classify most bacteria into Gram-positive or Gram-negative based on the structure of their cell walls. However, mycobacteria do not stain reliably with the Gram method due to their thick, waxy cell walls, rendering it ineffective for their identification. Option C, methylene blue, is a simple stain used to observe bacterial morphology or as a counterstain in other techniques (e.g., Gram staining), but it lacks the specificity to identify mycobacteria.
Option D, India ink, is used primarily to detect encapsulated organisms such as Cryptococcus neoformans by creating a negative staining effect around the capsule, and it is not suitable for mycobacteria.
The CBIC's "Identification of Infectious Disease Processes" domain underscores the importance of accurate diagnostic methods in infection control, including the use of appropriate staining techniques to identify pathogens like mycobacteria. The acid-fast stain is specifically recommended by the CDC and WHO for the initial detection of mycobacterial infections, such as tuberculosis, in clinical specimens (CDC, Laboratory Identification of Mycobacteria, 2008). This aligns with the CBIC Practice Analysis (2022), which emphasizes the role of laboratory diagnostics in supporting infection prevention strategies.
References:
* CBIC Practice Analysis, 2022.
* CDC Laboratory Identification of Mycobacteria, 2008.
* WHO Guidelines for the Laboratory Diagnosis of Tuberculosis, 2014.
NEW QUESTION # 285
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 # 286
Which of the following active surveillance screening cultures would be appropriate for carbapenem-resistant Enterobacterales (previously known as carbapenem-resistant Enterobacteriaceae) (CRE)?
Answer: A
Explanation:
Carbapenem-resistant Enterobacterales (CRE) colonization is most commonly found in the gastrointestinal (GI) tract. Therefore, rectal or peri-rectal cultures are recommended for active surveillance screening.
Why the Other Options Are Incorrect?
* B. Nares or axillary cultures - CRE is not primarily found in the nasal or axillary region; this method is more relevant for detecting MRSA.
* C. Abscess or blood cultures - While CRE may be present in clinical infections, these cultures are not used for screening asymptomatic carriers.
* D. Throat or nasopharyngeal cultures - CRE does not commonly colonize the upper respiratory tract, so these are not ideal for active screening.
CBIC Infection Control Reference
The CDC and APIC guidelines emphasize rectal or peri-rectal swabbing as the most effective active surveillance method for CRE detection.
NEW QUESTION # 287
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