CBIC Infection Prevention 4

Question 1

A patient on droplet precautions needs to be transported to radiology. Which action should the IP recommend?

Accepted Answer

Place a surgical mask on the patient and notify receiving area in advance

Answer

For transport of patients on droplet precautions, a surgical mask is placed on the patient to contain respiratory secretions, and the receiving department is notified to prepare.

Question 2

Which element of the hierarchy of controls is considered most effective for preventing occupational exposure to infectious aerosols?

Accepted Answer

Engineering controls such as HEPA ventilation

Answer

Engineering controls (e.g., negative-pressure rooms, HEPA filtration, biosafety cabinets) are highest in the hierarchy because they eliminate or reduce hazards at the source without relying on worker behavior.

Question 3

An IP is investigating a cluster of MRSA infections in a neonatal ICU. Which specimen collection approach is used to identify colonized patients during an outbreak?

Accepted Answer

Active surveillance cultures from anterior nares and/or perirectal swabs

Answer

Active surveillance cultures (ASC) of anatomical sites such as the anterior nares detect MRSA colonization in asymptomatic patients, identifying the reservoir driving transmission.

Question 4

According to the CDC's Healthcare Infection Control Practices Advisory Committee (HICPAC), which surface is considered a 'high-touch' environmental surface requiring frequent disinfection?

Accepted Answer

Bed rails and call buttons

Answer

High-touch surfaces such as bed rails, call buttons, and overbed tables are frequently contacted by patients and staff and serve as vehicles for pathogen transmission.

Question 5

Which formula correctly calculates incidence density rate for HAIs in a surveillance report?

Accepted Answer

(Number of HAIs / Number of patient days) × 1,000

Answer

Incidence density rate divides the number of HAIs by the total patient days (device days for device-associated rates) and multiplies by 1,000 to account for varying lengths of stay.

CBIC - Certification Board of Infection Control Practice Test

CBIC - Certification Board of Infection Control Practice Test

CBIC Infection Prevention 4