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2025 - 2026 CIC (CERTIFICATION IN INFECTION
CONTROL) FINAL EXAM|VERIFIED 200 QUESTIONS
AND ANSWER:-S WITH RATIONALES|GRADED A+
FINAL EXAM
Recipients of allogenic hematopoeietic stem transplantation (HSCT) should be placed in rooms with how many air exchanges per hour? 3 5 10 12 ANS:->>> 12. RATIONALE : A greater number of air exchanges per hour prevent opportunistic infections among stem cell transplant recipients Because of the increased risk of infection with parenteral nutrition, the maximum infusion time for a parenteral lipid bag to run is? 6 hours 12 hours 18 hours 24 hours ANS:->>> RATIONALE : Maximum 12 hours. Lipid emulsions pose greatest risk of contamination w/ bacteria or fungi The single most effective method of controlling hospital-acquired infections (HAI) is: Screening patients Isolating infected
patients Handwashing Immunizing staff members ANS:->>> Hand washing If a breastfeeding mother develops mastitis, the most likely cause is: Infant colonized with Staphylococcus aureus Inadequate cleansing of breast Maternal flora invading nipple Contaminated breast pump ANS:->>> Infant colonized with S. aureus. RATIONALE : 50% of neonates become colonized w/ S. aureus w/in a few days of birth, & pass infection into breast If hair removal is required for a surgical procedure, the BEST method is to: Shave hair with razor immediately before the incision Remove hair with a depilatory the night before surgery Remove hair with clippers the night before surgery Remove hair with clippers immediately before incision ANS:->>> Remove hair with clippers immediately before incision. RATIONALE : Clippers cause the least trauma, always immediately before surgery. Hair removal in general may not reduce rate of SSIs and may increase risk of infection IPC plan for an ambulatory surgery center should be evaluated (multiple options possible): I -
Which items in medical facility require most frequent environmental cleaning?: Bedra ils Floor s Ventilation grilles Window curtains ANS:->>> Bedrails, because they are high touch. Others only require frequent cleaning if visibly soiled Which preventive measures are recommended to prevent community-acquired pneumonia?: Pneumococcal vaccination Herpes zoster vaccination Influenza vaccination Smoking cessation ANS:->>> Pneumococcal vaccine, influenza vaccine, smoking cessation The best time to collect a sputum specimen for acid-fast bacilli is: Early morning Midday
Afternoon Bedtime ANS:->>> Early morning A distribution curve that has a skew value of +3 will exhibit what shape? **ANS:-
An enlarged tail to the right**. RATIONALE : This is indicating there are more data than expected on the right (or positive) end of the distribution curve. Skew is positive when the mean is greater than the median, negative when the mean is lesser than the median. Value of 0 = normal bell curve with no skew. Negative value = skew to the left. How long does a patient remain infectious after exposure to West Nile virus? ANS:->>> 6 - 7 days before symptoms occur With which teaching style (Grasha) does the IP focus on content rather than relationships w/ learners?: Demonstrat or Formal authority Facilitator Expert ANS:->>> Formal authority In outbreak investigation, a line list & epi curve have been completed. Before generating hypotheses, the next step should be to: Establish plan for methodology Conduct lit review Conduct brainstorming session Determine what resources are needed ANS:->>> Conduct lit review to ID other
Most common cause of early-onset neonatal meningitis is maternal transmission of: Neisseria gonorrhoeae Group B streptococcus Cytomegalovirus Toxoplasma gondii ANS:->>> Group B strep Epi curve that rises slowly and then plateaus most likely represents: Common continuous exposure Common intermittent exposure Prpagated source Point source ANS:->>> Common continuous exposure If a mother is pumping breast milk, what is the optimal time that milk should be stored in fridge at 4 degrees C? ANS:->>> 72 hours Which indicator is likely to require longest time period for collection of surveillance data?: CLA BSI CAU TI CDI
VRSA ANS:->>> VRSA. Infection is rare, so likely to require longest time to determine rates of infection, usual rates of occurrence, etc Purpose of the just-in-time inventory concept is to: Minimize costs of inventory Maintain better control of inventory Prevent waste of medical supplies Ensure adequate stock of medical supplies ANS:->>> Minimize costs of inventory Steps to reduce peritoneal dialysis catheter-associated infections include: I - Placing exist site of catheter at beltline II - Using double-cuff catheter III - Using strict aseptic technique IV - Avoiding baths/showers until insertion site heals ANS:->>> II - Using double-cuff catheter III - Using strict aseptic technique IV - Avoiding baths/showers until insertion site heals What clinical manifestation in a pediatric patient should give an IP a high index of suspicion for chicken pox?: A. Lesions first appear on the face or trunk B. Lesions first appear in the throat or mouth C. Bright red rash that appears on the cheeks D. Inflamed, red or peeling skin on knees and elbows ANS:->>> Lesions first appear on the face or trunk
d. Coxsackievirus ANS:->>> Rubeola (measles) Anti-HBc indicates: a. Prior infection with Hepatitis B. b. Status as a Hepatitis B carrier. c. New infection with Hepatitis B. d. Prior immunization with Hepatitis B vaccine. ANS:->>> a) Prior infection with Hepatitis B Serologic markers of a recent infection include: a. IgG b. IgM c. IgA d. IgC ANS:->>> b) IgM A gram stain of cerebrospinal fluid showing gram negative diplococci strongly suggest which of the following: a. Aseptic Meningitis b. Pneumococcal disease c. Meningococcal disease d. H. influenzae disease ANS:->>> c) Meningococcal disease The first step in an outbreak investigation is: a. Develop a case definition. b. Begin case finding. c. Confirm the outbreak. d. Notify senior leadership. ANS:->>> c. Confirm the outbreak
Surveillance is defined as: a. Systematic collection of data for reporting. b. Focused data collection to detect problems. c. Targeted collection of data for quality assurance. d. Systematic collection of data for planning, implementation, and evaluation. ANS:->>> d. Systematic collection of data for planning, implementation, and evaluation Endemic infections are those infections that occur in a population: a. Rarely. b. at a usual rate. c. at a higher-than-normal rate. d. that has never been affected by them before. ANS:->>> b. at a usual rate. Pandemic infections are those that occur: a. In a narrow geographic area. b. In a single country affecting many people. c. Among a previously unaffected population. d. In a widespread geographic area affecting much of the population. ANS:-
d. In a widespread geographic area affecting much of the population. Virulence describes: a. The reservoir of an organism. b. A factor related to a disease host. c. The ability of an organism to invade a host and cause disease.
a. Surveillance of patient illnesses. b. Education of personnel about their risk of disease acquisition. c. Investigation of patients exposed to ill healthcare personnel. d. Notification of patients exposed to ill healthcare personnel. ANS:->>> b. Education of personnel about their risk of disease acquisition A pregnant healthcare worker with previous history of varicella vaccination is assigned to care for an individual with disseminated shingles. She should: a. be reassigned to care for other patients. b. utilize Standard/Routine and Airborne Precautions while caring for the patient. c. receive an additional varicella vaccine during pregnancy. d. be advised to consult with her provider about potential exposure. ANS:->>> b. utilize Standard/Routine and Airborne Precautions while caring for the patient. Competence may be thought of as: a. the process of teaching a skill to a learner. b. the ability to put knowledge into action. c. the process of attaining knowledge and skill. d. the ability to identify problems in the workplace. ANS:->>> b. the ability to put knowledge into action According to the APIC Competency Model the Early Novice IP is should pursue competency in all the following except: a. Developing policies. b. Learning the basics of epidemiology. c. Performing advanced analysis of statistics. d. Participating in ongoing learning opportunities. ANS:->>> c. Performing
advanced analysis of statistics The most basic goal of infection prevention education is: a. Ensuring knowledge of policies and procedures. b. Identifying risk for disease transmission. c. Developing competency in infection prevention. d. Developing evidence-based procedures. ANS:->>> c. Developing competency in infection prevention. A competency statement describes: a. Responsible personnel. b. Steps in a psychomotor skill. c. Recommended performance measures. d. Worker skill, knowledge, and mind set needed to perform a duty. ANS:->>> d. Worker skill, knowledge, and mind set needed to perform a duty Infection preventionists should review which of the following when assessing the environment of care? a. Outdoor air quality. b. Weather related outdoor humidity. c. Air pressure relationships within the facility d. Elevation of the head of the bed for patients on ventilators. ANS:->>> c. Air pressure relationships within the facility The temperature of cold food storage (e.g., refrigerators) is monitored and recorded every 4 hours. When reviewing the temperature log the IP notes that the refrigerator temperature has been recorded as being 45 degrees Fahrenheit for the previous 16 hours. What action should be taken first?
aeruginosa Clostridium perfringens ANS:->>> c) Pseudomonas is the only Gram negative organism on the list. S. aureus are Gram positive cocci; E. faecium are Gram positive cocci; C. perfringens are Gram positive rods A child presents to the ER with fever, headache, and sudden bright red "slapped cheek" rash. Which virus is the likely cause? Coxsackievirus Human metapneumovirus Paramyxovirus Parvovirus B19 ANS:->>> d) Parvovirus B19, which can cause a bright red facial rash in children referred to as a "slapped cheek" rash or Fifth Disease. A good resource is the Red Book for pediatric infectious diseases What is the specimen of choice for viral isolation from a patient with suspected mumps? Buccal swab Blood culture Skin scraping Stool ANS:->>> a) Buccal swab, and you would need to perform a PCR test on it There has been an increased number of positive surgical site cultures from patients who don't have clinical infections. You suspect the specimens are being improperly collected. What is the most way to collect a wound culture?
A - From drainage after cleaning the wound surface B - From the purulent material on the wound dressing C - From the wound prior to cleaning D - From the skin surface surrounding the wound ANS:->>> A - From drainage after cleaning the wound surface b) is incorrect because it's not sterile c) is incorrect because you need to collect drainage expressed from the wound after cleaning d) is incorrect because of contamination from normal skin flora At what point(s) in the cycle of disease transmission can we as infection preventionists break the chain of infection, and how can we interfere at each point? Susceptible host Infectious microbe Reservoir Portal of exit Mode of transmission Portal of entry ANS:->>> D, E, and F - these are the points where we can interfere D: prevent/cover coughing, sneezing, bleeding, feces E: By using contact/airborne/droplet precautions, preventing transmission to vehicle/insect vector F: Protect wound opening/mucus membrane via sterilization/disinfection of devices Match the following bacteria to a the body site where they are typically found (not
g) E. coli ANS:->>> Gut Normal skin flora includes: Coagulase negative staphylococcus Coagulase negative streptococcus Coagulase positive staphylococcus Coagulase positive streptococcus ANS:->>> a) Coagulase negative staphylococcus, such as S. epidermiditis, is normal skin flora Intact skin is not a barrier against infection from which of the following: Streptococc us Cryptococc us Staphylococ cus HPV/Herpes simplex ANS:->>> HPV/Herpes simplex Results compatible with meningococcal meningitis include: Gram negative cocci in pairs, WBC count >100, glucose 25 mg/100 mL Gram positive cocci in pairs, WBC count >100, glucose 25 mg/100 mL Gram negative in clusters, WBC count >100, glucose 80 mg/100 mL
Gram negative cocci in clusters, WBC count >100, glucose 80 mg/100 mL ANS:->>> a) Bacterial meningitis is usually caused by N. meningitidis (Gram (-) pairs). Bacteria in CSF eat glucose (making glucose low) and secrete protein. WBC and neutrophil predominant (for viruses, leukocyte predominant, glucose/protein won't be altered) What type of isolation precautions will be required for a patient with meningococcal meningitis.: Standard only Contact precautions Droplet precautions Airborne precautions ANS:->>> c) Droplet precautions for bacterial meningitis What type of isolation precautions will be required for a patient with viral meningitis.: Standard only Contact precautions Droplet precautions Airborne precautions ANS:->>> a) standard precautions The patient's cerebrospinal fluid (CSF) results are positive for Gram negative diplococci. Which of the following organisms could be causing the infection (multiple possible)? Moraxella
