ATI LPN
Patient Safety Practice Questions Questions
Question 1 of 5
Microorganisms that cause infectious diseases:
Correct Answer: B
Rationale: Pathogens are microorganisms that cause disease; carcinogens cause cancer, and DNA/genocytes are not microorganisms.
Question 2 of 5
A patient who was hospitalized for 2 days calls 3 days after discharge complaining that he has developed healthcare-associated scabies due to his recent inpatient stay. The IP knows that his scabies infestation is not healthcare-associated because.
Correct Answer: B
Rationale: Scabies has an incubation period of 2-6 weeks; symptoms appearing 5 days post-exposure suggest prior community acquisition.
Question 3 of 5
Several measures to reduce urinary tract infections have been implemented at a longterm care facility. The most important action that will reduce infections is:
Correct Answer: B
Rationale: A closed drainage system minimizes bacterial entry, the primary cause of CAUTIs.
Question 4 of 5
Based on the epidemic curve, what is the most likely source of this outbreak?
Correct Answer: B
Rationale: Without the curve, a point-source outbreak (e.g., catered lunch) is a common assumption for such questions.
Question 5 of 5
The IP is reviewing a research study to assess the association between needless connectors (NC) change frequency and CLABSI rate. In a multivariate analysis, the CLABSI rate was significantly higher ( p=0.001 ) among patients that had NC changed every 24 hours compared to patients changed at 96 hours. The IP knows that this p value indicates more evidence in support of which of the following?
Correct Answer: A
Rationale: A low p-value (0.001) supports the alternative hypothesis, rejecting the null.