CBiC exam 1 fully solved &
2026/2027 updated.
which of the following is an example of the criterion of strength of the
association from hills criteria for causation?
a. in the study of the association between antibiotic exposure and
development of c difficile infection the odds ratio was 2:3
b. in the study of the association between antibiotic exposure and
development of c difficile infection the authors conclusions are consistent with
those of three other studies
c. in a study of the association between antibiotic exposure and development
of c difficile infection antibiotic therapy began an average of 3 weeks before c
difficile infection developed
d. in a study of the association between antibiotic exposure and development
of c difficile infection prolonged antibiotic therapy was a greater risk for c
difficile infection than short-term antibiotic therapy. - ANSWER-a
which of the following organisms have been associated with the transmission
of infections after body piercing?
1) atypical mycobacterium species
2) staphylococcus species
3) pseudomonas species
4) haemophilus species
a. 1,2,3
b. 2,3,4
c. 1,3,4
d. 1,2,4 - ANSWER-a
, CBiC exam 1 fully solved &
2026/2027 updated.
all of the following may be indications of a HVAC malfunction except
a an increase in the post-operative surgical site infection
b. a single case of aspergillosis in a severely immunocompromised patient
c. healthcare associated varicella infections
d. An outbreak of ventilator associated acinetobacter infections in the ICU -
ANSWER-d
a patient is suspected of having pertussis a nasal pharyngeal aspirate is
collected for direct fluorescent antibody testing and for culture 8 hours after
antimicrobial therapy is started The DFA test is negative but the culture test is
positive does this patient have pertussis?
a. no because the DFA test is highly specific and it was negative
b. no because culture of bordetella pertussis has very low sensitivity
c. no because I'll testing is unreliable if antimicrobial therapy has been initiated
prior to specimen collection
d.Yes because the culture test is 100% specific for identification of bordetella
pertussis - ANSWER-d
The most common organism associated with pneumonia and school-age
children and young adults is
a. neisseria meningitis
b. streptococcus pneumonia
c. staphylococcus aureus
, CBiC exam 1 fully solved &
2026/2027 updated.
d. Mycoplasma pneumonia - ANSWER-d
a preliminary microbiology report states that a patient's blood culture grew
aerobic gram-negative bacilli which of the following is most likely genus and
species of the organism
a. enterococcus faecalis
b. bacteroides fragilis
c. acinetobacter baumanii
d. Neisseria meningitis - ANSWER-c
and acute care facility experiences and outbreak of seratia
marcescensbloodstream infections after the outbreak is under control and no
new cases are being reported The IP wants to find the source of the outbreak
The most appropriate and epidemiology study designed to use is
a. retrospective cohort study
b. prospective cohort study
c. case control study
d. cross-sectional study - ANSWER-c
important considerations regarding blood culture specimens include
1) collect prior to the initiation of antimicrobial therapy
2) collect from a central venous catheter whenever possible
3) ensure that the volume of the specimen collected is sufficient
4) culture of specific sites is not recommended for surveillance
2026/2027 updated.
which of the following is an example of the criterion of strength of the
association from hills criteria for causation?
a. in the study of the association between antibiotic exposure and
development of c difficile infection the odds ratio was 2:3
b. in the study of the association between antibiotic exposure and
development of c difficile infection the authors conclusions are consistent with
those of three other studies
c. in a study of the association between antibiotic exposure and development
of c difficile infection antibiotic therapy began an average of 3 weeks before c
difficile infection developed
d. in a study of the association between antibiotic exposure and development
of c difficile infection prolonged antibiotic therapy was a greater risk for c
difficile infection than short-term antibiotic therapy. - ANSWER-a
which of the following organisms have been associated with the transmission
of infections after body piercing?
1) atypical mycobacterium species
2) staphylococcus species
3) pseudomonas species
4) haemophilus species
a. 1,2,3
b. 2,3,4
c. 1,3,4
d. 1,2,4 - ANSWER-a
, CBiC exam 1 fully solved &
2026/2027 updated.
all of the following may be indications of a HVAC malfunction except
a an increase in the post-operative surgical site infection
b. a single case of aspergillosis in a severely immunocompromised patient
c. healthcare associated varicella infections
d. An outbreak of ventilator associated acinetobacter infections in the ICU -
ANSWER-d
a patient is suspected of having pertussis a nasal pharyngeal aspirate is
collected for direct fluorescent antibody testing and for culture 8 hours after
antimicrobial therapy is started The DFA test is negative but the culture test is
positive does this patient have pertussis?
a. no because the DFA test is highly specific and it was negative
b. no because culture of bordetella pertussis has very low sensitivity
c. no because I'll testing is unreliable if antimicrobial therapy has been initiated
prior to specimen collection
d.Yes because the culture test is 100% specific for identification of bordetella
pertussis - ANSWER-d
The most common organism associated with pneumonia and school-age
children and young adults is
a. neisseria meningitis
b. streptococcus pneumonia
c. staphylococcus aureus
, CBiC exam 1 fully solved &
2026/2027 updated.
d. Mycoplasma pneumonia - ANSWER-d
a preliminary microbiology report states that a patient's blood culture grew
aerobic gram-negative bacilli which of the following is most likely genus and
species of the organism
a. enterococcus faecalis
b. bacteroides fragilis
c. acinetobacter baumanii
d. Neisseria meningitis - ANSWER-c
and acute care facility experiences and outbreak of seratia
marcescensbloodstream infections after the outbreak is under control and no
new cases are being reported The IP wants to find the source of the outbreak
The most appropriate and epidemiology study designed to use is
a. retrospective cohort study
b. prospective cohort study
c. case control study
d. cross-sectional study - ANSWER-c
important considerations regarding blood culture specimens include
1) collect prior to the initiation of antimicrobial therapy
2) collect from a central venous catheter whenever possible
3) ensure that the volume of the specimen collected is sufficient
4) culture of specific sites is not recommended for surveillance
