Chain of Infection
This link in the chain of infection refers to where microorganisms live and multiply.
Reservoir
The single most effective way to prevent infection transmission in health care settings.
Hand hygiene
Standard precautions are used for:
All patients
Medical asepsis focuses on reducing the number of microorganisms. True or False
True
A surgical incision with clean edges is an example of a:
Incised wound
A nurse performs hand hygiene before patient contact. This action breaks which link in the chain of infection?
Mode of transmission
Alcohol-based hand rub is appropriate when hands are:
Not visibly soiled
A patient with tuberculosis requires which type of precautions?
Airborne precautions
Cleaning from the least soiled area to the most soiled area is an example of:
Aseptic technique
A pressure injury caused by prolonged pressure is classified as a:
Chronic wound
A patient with influenza coughs into the air. This represents which link in the chain of infection?
Portal of exit
The nurse removes gloves after providing care. What should the nurse do next?
Perform hand hygiene
Which PPE is essential when entering an airborne isolation room?
N95 respirator
A nurse sets a sterile dressing on a table that was not cleaned first. What principle of medical asepsis was violated?
Creating a clean work area
Which finding most strongly indicates wound infection?
Purulent drainage with redness and warmth
An immunocompromised patient receiving chemotherapy represents which link in the chain of infection?
Susceptible host
Which PPE item is required when there is risk of splashing body fluids?
Face shield or goggles
A patient with C. difficile requires which transmission-based precautions?
Contact precautions
Which nursing action best reduces the risk of healthcare-associated infections (HAIs)?
Consistent hand hygiene
The nurse cleans a wound from the incision outward. This prevents:
Contaminating the wound
A urinary catheter provides microorganisms entry into the body. This is known as the:
Portal of entry
A nurse dons PPE in the wrong order. Which item should always be applied first?
Gown
A mask should be placed on a patient being transported who has which type of precautions?
Airborne precautions
A patient on contact precautions uses shared equipment without cleaning. What risk does this create?
Cross-contamination
Red, beefy tissue seen in a healing wound is called:
Granulation tissue