CIC Practice Exam 2 Questions And
Answers
Bacterial Meningitis CSF report results - Answer - The CSF of patients with untreated meningococcal
meningitis is usually cloudy with a predominance of neutrophils, low glucose, and high protein levels
CDC CLABSI criteria - Answer - common commensals meet the criteria for a CLABSI if there are two
positive cultures from two or more sets of blood cultures drawn less than 2 days apart and the patient
has symptoms.
Criterion elements must occur within a time frame that does not exceed a gap of 1 calendar day
between two adjacent elements
Organisms involved in most piercings - Answer - Atypical Mycobacterium species
Staphylococcus species
Pseudomonas species
The organisms involved in most earlobe-piercing infections are often considered normal skin flora,
including Staphylococcus and Streptococcus species. Higher ear piercings in the ear cartilage have been
associated with more pathogenic organisms, including Pseudomonas species. Multiple cases of atypical
Mycobacterium infections after piercing have been reported
HAIs that suggest HVAC malfunction? [4] - Answer - --Tuberculosis
--Aspergillosis in an immunocompromised patient
--varicella infections
--increased SSI rates.
HVAC systems are usually not the immediate cause of device-associated HAIs
, Sensitivity - Answer - the ability of a test to identify true cases or persons who have the disease or
health condition of interest; it is the probability of getting positive test results among patients with
disease; a high sensitivity test means that a negative result rules out the disease
Diagnosis of Bordetella pertussis - Answer - may occur by culture, DFA, or polymerase chain reaction
testing; Culture of B. pertussis is carried out on Bordet-Gengout or Regan-Lowe media with
nasopharyngeal samples and has varying sensitivity depending on specimen handling and whether
antimicrobial therapy was initiated prior to the specimen collection; DFA testing is very specific but not
very sensitive, and PCR testing has good sensitivity and variable specificity; A negative DFA test may not
mean the patient doesn't actually have pertussis because this test has low sensitivity and thus there is a
chance of false negative tests, so a culture test must be performed to confirm DFA test results; If the
culture is negative then this cannot rule out pertussis because culture may have low sensitivity , but if a
culture is positive then the patient has pertussis because the 100 percent specificity of the test means
that there are no false positive results
Handling instruments at point of use - Answer - -Devices are to be cleaned before biofilm can form
-Keep instrumentation moist to prevent bio-burden from drying-applying enzymatic foam or gel cleaner,
using wet towels placed within the set of used instruments, or presoaking used items in water or
cleaning solution may be done
-Contaminated devices are to be placed in a sealed container to prevent exposure to staff and patients
-Instruments with lumens should be fleshed with water, not saline
Type I error - Answer - occurs when on rejects the null hypothesis when it is true (also called a false
positive result); The p value is the estimated probability of rejecting the null hypothesis of a study
question when that hypothesis is true; a p value of 0.10 indicates a 10% (or 1 in 10) chance of making a
Type I error
Leading cause of pneumonia is school-aged children - Answer - Mycoplasma pneumoniae
Acinetobacter baumanii - Answer - a gram-negative rod bacterium; typically short, almost round, and
rod-shaped; Can be an opportunistic pathogen in humans and is becoming increasingly important as an
HAI; has also been isolated from soil and water samples in the environment
Risk factors of UTIs in the postpartum period - Answer - -Cesarean delivery
-Tocolysis
Answers
Bacterial Meningitis CSF report results - Answer - The CSF of patients with untreated meningococcal
meningitis is usually cloudy with a predominance of neutrophils, low glucose, and high protein levels
CDC CLABSI criteria - Answer - common commensals meet the criteria for a CLABSI if there are two
positive cultures from two or more sets of blood cultures drawn less than 2 days apart and the patient
has symptoms.
Criterion elements must occur within a time frame that does not exceed a gap of 1 calendar day
between two adjacent elements
Organisms involved in most piercings - Answer - Atypical Mycobacterium species
Staphylococcus species
Pseudomonas species
The organisms involved in most earlobe-piercing infections are often considered normal skin flora,
including Staphylococcus and Streptococcus species. Higher ear piercings in the ear cartilage have been
associated with more pathogenic organisms, including Pseudomonas species. Multiple cases of atypical
Mycobacterium infections after piercing have been reported
HAIs that suggest HVAC malfunction? [4] - Answer - --Tuberculosis
--Aspergillosis in an immunocompromised patient
--varicella infections
--increased SSI rates.
HVAC systems are usually not the immediate cause of device-associated HAIs
, Sensitivity - Answer - the ability of a test to identify true cases or persons who have the disease or
health condition of interest; it is the probability of getting positive test results among patients with
disease; a high sensitivity test means that a negative result rules out the disease
Diagnosis of Bordetella pertussis - Answer - may occur by culture, DFA, or polymerase chain reaction
testing; Culture of B. pertussis is carried out on Bordet-Gengout or Regan-Lowe media with
nasopharyngeal samples and has varying sensitivity depending on specimen handling and whether
antimicrobial therapy was initiated prior to the specimen collection; DFA testing is very specific but not
very sensitive, and PCR testing has good sensitivity and variable specificity; A negative DFA test may not
mean the patient doesn't actually have pertussis because this test has low sensitivity and thus there is a
chance of false negative tests, so a culture test must be performed to confirm DFA test results; If the
culture is negative then this cannot rule out pertussis because culture may have low sensitivity , but if a
culture is positive then the patient has pertussis because the 100 percent specificity of the test means
that there are no false positive results
Handling instruments at point of use - Answer - -Devices are to be cleaned before biofilm can form
-Keep instrumentation moist to prevent bio-burden from drying-applying enzymatic foam or gel cleaner,
using wet towels placed within the set of used instruments, or presoaking used items in water or
cleaning solution may be done
-Contaminated devices are to be placed in a sealed container to prevent exposure to staff and patients
-Instruments with lumens should be fleshed with water, not saline
Type I error - Answer - occurs when on rejects the null hypothesis when it is true (also called a false
positive result); The p value is the estimated probability of rejecting the null hypothesis of a study
question when that hypothesis is true; a p value of 0.10 indicates a 10% (or 1 in 10) chance of making a
Type I error
Leading cause of pneumonia is school-aged children - Answer - Mycoplasma pneumoniae
Acinetobacter baumanii - Answer - a gram-negative rod bacterium; typically short, almost round, and
rod-shaped; Can be an opportunistic pathogen in humans and is becoming increasingly important as an
HAI; has also been isolated from soil and water samples in the environment
Risk factors of UTIs in the postpartum period - Answer - -Cesarean delivery
-Tocolysis
