ATI LPN
Infection Control Exam Questions Answers Questions
Question 1 of 5
The IP is teaching nurses how to assess injection risks in patients. Depletion of what cell type provides the best indication of susceptibility to most bacterial infections?
Correct Answer: C
Rationale: Neutrophils are the primary responders to bacterial infections; their depletion (neutropenia) significantly increases susceptibility.
Question 2 of 5
CLASSI rate = 4 CLABSI/284 line days, Predicted Infections = 0.50, What is the SIR?
Correct Answer: A
Rationale: SIR = observed/predicted = 4/0.50 = 8.
Question 3 of 5
Direct observation of performance by an individual of a specific skill may yield a temporary and artificial high result. This phenomenon is known as the:
Correct Answer: A
Rationale: The Hawthorne effect describes improved performance due to being observed.
Question 4 of 5
The purpose of a biological indicator in an autoclave is: 1. To determine whether the items being autoclaved are properly sterilized, which is indicated by a positive BI result 2. To determine whether the items being autoclaved are properly sterilized, which is indicated by a positive BI result 3. To determine whether the items being autoclaved are properly cleaned, which is indicated by a positive BI result 4. To determine whether the items being autoclaved are properly cleaned, which is indicated by a negative BI result
Correct Answer: B
Rationale: A negative BI result indicates successful sterilization, not cleaning.
Question 5 of 5
What is an emerging infection with the greatest global impact?
Correct Answer: D
Rationale: HIV/AIDS has had the most significant global impact due to its widespread prevalence and the chronic nature of the disease.