Infection Control and Safety Flashcards

Which level of disinfection is required for semi-critical medical instruments that contact mucous membranes?

Answer: High-level disinfection

Semi-critical items require high-level disinfection to eliminate all microorganisms except high numbers of bacterial spores.

What is the correct donning order for PPE when entering an isolation room?

Answer: Gown, mask/respirator, eye protection, gloves

Gown first, then mask/respirator, eye protection, and gloves last ensures hands do not contaminate the face before eye and respiratory protection is in place.

A patient is diagnosed with active tuberculosis. Which type of isolation precautions should be implemented?

Answer: Airborne precautions

Tuberculosis is transmitted via airborne droplet nuclei and requires airborne precautions including a negative-pressure room and N95 respirator.

Which agent is the most appropriate disinfectant for cleaning blood spills on environmental surfaces?

Answer: Bleach solution (1:10 dilution)

A 1:10 bleach solution is an EPA-registered disinfectant effective against bloodborne pathogens on hard surfaces.

According to the chain of infection, which link is addressed when a patient receives an influenza vaccination?

Answer: Susceptible host

Vaccination strengthens the susceptible host's immunity, breaking the chain of infection at that point.

When removing (doffing) PPE, which item should be removed first?

Answer: Gloves

Gloves are removed first because they are the most contaminated item and removing them protects the hands before touching other PPE.