CHSP Infection Prevention and Control 5

Question 1

Which surveillance definition system does the CDC's National Healthcare Safety Network (NHSN) use to standardize healthcare-associated infection reporting?

Accepted Answer

NHSN standardized surveillance definitions

Answer

NHSN uses its own standardized surveillance definitions specifically designed to ensure consistent, comparable HAI reporting across facilities.

Question 2

A patient with active pulmonary tuberculosis is admitted. Which type of isolation room is required?

Accepted Answer

Negative-pressure airborne infection isolation room (AIIR)

Answer

Airborne infection isolation rooms with negative pressure and at least 12 air changes per hour are required for patients with active pulmonary TB.

Question 3

Which element is NOT part of the central line bundle used to prevent CLABSI?

Accepted Answer

Routine replacement of central lines every 72 hours

Answer

Routine scheduled replacement of central lines is not recommended and is not part of the CLABSI prevention bundle; lines should be removed when no longer necessary.

Question 4

A healthcare safety professional is evaluating the reprocessing of a laryngoscope blade after use. According to the Spaulding classification, how should this item be categorized?

Accepted Answer

Semi-critical — high-level disinfection required

Answer

Laryngoscope blades contact mucous membranes and are classified as semi-critical devices requiring high-level disinfection or sterilization.

Question 5

During an influenza outbreak investigation, the infection preventionist calculates an attack rate of 30% among vaccinated staff and 65% among unvaccinated staff. What does this data primarily demonstrate?

Accepted Answer

Vaccine effectiveness is approximately 54% in this outbreak

Answer

Vaccine effectiveness is calculated as (1 - risk ratio) × 100; with attack rates of 30% vs. 65%, VE = (1 - 0.46) × 100 ≈ 54%, showing partial but meaningful protection.

CHSP - Certified Healthcare Safety Professional Practice Test

CHSP - Certified Healthcare Safety Professional Practice Test

CHSP Infection Prevention and Control 5