CIC 1
A major difference between a prospective and retrospective study is that the prospective study:
a. requires a relatively small # of subjects
b. is usually used for testing initial hypothesis
c. may require a long follow-up period
d. is usually less costly
c. may require a long follow-up period.
To increase recovery of AFB from sputum, specimens should be collected:
a. once a week for 3 consecutive weeks
b. every day for 1 week
c. first morning specimen for 3 consecutive days
d. 3 specimens 1 hour apart on the same day
c. first morning specimen for 3 consecutive days
All of the following statements are true concerning bleach EXCEPT:
a. it has a broad spectrum of antimicrobial activity
b. it is effective against HBV and HIV
c. is active in the presence of organic material
d. is a fast-acting disinfectant
c. is active in the presence of organic material
The isolation of diptheroid or corynebacterium-like organisms from a clinical specimen may or may not be significant. One feature that increases the likelihood of significance is:
a. isolation from blood culture of a pt with fever
b. isolation in the presence of a shunt or prosthetic valve
c. isolation from an abdominal surgical wound infection
d. sensitivity of the organism to vancomycin
b. isolation in the presence of a shunt or prosthetic valve
A pt has a nasal swab + for MRSA. This is an example of:
a. Normal Flora
b. Colonization
c. Asymptomatic infection
d. Symptomatic infection
b. colonization
All of the 72 pts in a dialysis center were tested for HCV. 8 of the pts were HCV +. During the following year, 2 pts who previously tested negative converted to HCV +. What was the incidence for that year?
a. 2.8%
b. 3.1%
c. 13.8%
d. 7.2%
b. 3.1%
Analysis of quantitative research may be used to:
a. suggest association
b. prove causality
c. establish a numerical basis of proof
d. prove similarities among groups
a. suggest an association
Three cases of camping abdominal pain and diarrhea are reported to you w/in 24 hours. All persons are from the same community and the onset was within 12 to 36 hours of a picnic. Which foodborne illness do you suspect?
a. Salmonella
b. Hep A
c. Staph aureus
d. Clostridium perfringens
a. Salmonella
You are the IP for a 400-bed acute care facility with an outbreak of ortho infections. You begin gathering info about all of the cases. You should characterize the cases according to:
a. person, place, and time
b. agent, host, and environment
c. agent, host, and date of onset
d. time, person, date of onset
a. person, place, and time
Which of the following organisms would be the most likely cause of viral conjunctivitis in a physical therapist who performs home care?
a. Echovirus
b. Adenovirus
c. Enterovirus
d. Herpes simplex virus
b. adenovirus
Which of the following represents a known TB skin test conversion in a HCW?
a. Prior TST not available, but current result is 16mm
b. TST reaction 1 yr ago was 9mm, current results are 13mm.
c. A prior TST was not measured, but the employee states it was dime sized. The current result is 11mm
d. TST reaction 1 yr ago was 3mm, current result is 18mm.
d. TST reaction 1 yr ago was 3mm, current result is 18mm
In July, there were 6 SSIs among 120 patients. What was the SSI attack rate for July?
a. 3%
b. 5%
c. 8%
d. 20%
b. 5%
When reviewing the gram stain of a person with a wound infection, you see gram positive organisms in clusters. Which organism would this most likely represent?
a. Streptococcus
b. Enterococcus
c. Diptheroids
d. Staphylococcus
d. Staphylococcus
Which organism would commonly be found in tap water?
a. Salmonella
b. Legionella
c. Staphylococcus
d. Candida
b. Legionella
Anaerobic culturs should be used for any of the following sites EXCEPT:
a blood
b. transtracheal aspirate
c. spinal fluid
d. pressure ulcer
d. pressure ulcer
Urine culture results were + for E coli resistant to cephalosporin and ciprofloxacin. This organism is an example of:
a. methicillin resistance
b. aminoglycoside resistance
c. extended-spectrum beta-lactam resistance
d. quinolone resistance
c. extended-spectrum beta lactam resistance
Incidence rate is defined as:
a. # new cases/# at risk X a constant
b. # existing cases in a given time period
c. # new cases/population
d. # new cases /# old cases
a. # new cases/# at risk X a constant
a. 6 months
b. 1 to 3 months
c. 12 months
d. 3 weeks
Because of an increase in acuity in the ICU, # of vent days has doubled. your VAP rate has increased compared with prior rates. Your FIRST action would be:
a. communicate the infection rates to staff
b. continue to collect and trend data
c. stratify risk factors, then develop charts and tables showing infection and acuity rates
d. assemble a team to reduce the # of VAPs
c. stratify risk factors, then develop charts and tables showing infections and acuity rates
Of the following viruses, which is the most common HAI pathogen in pediatric wards?
a. RSV
b. adenovirus
c. HSV
d. Cytomegalovirus
a. RSV
The MOST important problem in developing a long-term vaccine for influenza is:
a. potential toxicity
b. lack of potency
c. antigenic drift of the viruses
d. short storage life of vaccine
c. antigenic drift of the viruses
Which of the following statements regarding urinary catheter insertion is FALSE?
a. even though CAUTIs are rare, a Foley should be avoided unless absolutely necessary
b. a condom catheter may be more appropriate if the pt is male
c. avoiding indwelling catheters in pts helps prevent CAUTIs
d. if a Foley is inserted, it should be removed at the earliest possible moment to avoid infection
When analyzing control chart data, a process is considered "out of control" if any of the following are present EXCEPT:
a. 2 of 3 consecutive data points are above the upper control limit or below the lower control limit
b. 4 of 5 consecutive data points are between 1 and 2 standard deviations above or below the mean
c. 6 consecutive data points are increasing or decreasing
c. 9 consecutive data points are on one side of the mean
a. 2 of 3 consecutive data points are above the upper control limit or below the lower limit
the causative organism of Creutzfeldt-Jakob disease is a:
a. Helminth
b. Rickettsia
c. Spirochete
d. Prion
d. Prion
Greather than 80% lymphoctes in a CSF specimen with no organisms seen usually is indicative of meningitis caused by:
a. mycobacteria
b. fungi
c. bacteria
d. viruses
a. mycobacterium