SGNA Infection Control and Safety 3

Question 1

What is the minimum soak time for glutaraldehyde 2.4% to achieve high-level disinfection of endoscopes at room temperature?

Accepted Answer

20–45 minutes (per manufacturer instructions)

Answer

Glutaraldehyde 2.4% requires 20–45 minutes of contact time at room temperature to achieve HLD, though exact time depends on manufacturer specifications.

Question 2

What safety precaution is essential when working with glutaraldehyde-based high-level disinfectants?

Accepted Answer

Use in a well-ventilated area with appropriate respiratory protection

Answer

Glutaraldehyde vapors are toxic and can cause respiratory irritation, sensitization, and asthma; adequate ventilation and N95 or supplied-air respirators are required.

Question 3

Which type of transmission-based precaution is required for a patient with active tuberculosis undergoing bronchoscopy?

Accepted Answer

Airborne precautions

Answer

Active TB requires airborne precautions including negative pressure rooms and N95 respirators due to airborne transmission of Mycobacterium tuberculosis droplet nuclei.

Question 4

The 'two-nurse rule' in the endoscopy setting refers to what safety practice?

Accepted Answer

Two qualified nurses required during moderate sedation procedures

Answer

During moderate sedation, one nurse monitors the patient continuously while another assists the endoscopist, ensuring dedicated monitoring without distraction.

Question 5

A needle stick injury occurs during an endoscopy procedure. What is the FIRST action the affected nurse should take?

Accepted Answer

Wash the wound thoroughly with soap and water and report immediately

Answer

Immediate wound washing with soap and water removes potential pathogens, followed by immediate reporting to initiate post-exposure prophylaxis (PEP) protocols.

SGNA - Society of Gastroenterology Nurses and Associates Practice Test

SGNA - Society of Gastroenterology Nurses and Associates Practice Test

SGNA Infection Control and Safety 3