WorksheetsUnderstanding Infection Control Basics
Total questions: 30
Worksheet time: 15mins
What is the first link in the chain of infection?
Portal of exit
Infectious agent
Susceptible host
Mode of transmission
Which of the following is an example of a pathogen?
Oxygen
Bacteria
Water
Sunlight
What is the main purpose of hand hygiene in infection control?
To moisturize the skin
To remove or kill microorganisms
To cool the hands
To make hands smell nice
Which of the following is a standard precaution in infection control?
Wearing a hat
Hand washing
Eating before procedures
Chewing gum
What type of microorganism causes the common cold?
Bacteria
Virus
Fungus
Protozoa
Which of the following is NOT a link in the chain of infection?
Reservoir
Portal of entry
Immune response
Mode of transmission
What is the correct order for donning (putting on) gloves during aseptic technique?
Before washing hands
After washing hands
After touching contaminated surfaces
Before putting on a mask
Which of the following is a mode of transmission for infectious diseases?
Direct contact
Sunlight
Gravity
Magnetism
What is the main difference between bacteria and viruses?
Bacteria are larger and can reproduce on their own; viruses need a host cell
Viruses are living organisms; bacteria are not
Bacteria cause only mild diseases; viruses cause only severe diseases
Viruses can be treated with antibiotics; bacteria cannot
Which of the following is an example of a microorganism?
Plant
Bacterium
Rock
Metal
Which step in the chain of infection can be broken by covering your mouth when you cough?
Portal of entry
Portal of exit
Susceptible host
Reservoir
A nurse uses hand sanitizer after removing gloves. Which infection control principle is being applied?
Breaking the chain at the susceptible host
Breaking the chain at the mode of transmission
Breaking the chain at the portal of entry
Breaking the chain at the infectious agent
If a patient is placed in a room with special air filtration to prevent the spread of airborne diseases, which type of transmission is being controlled?
Direct contact
Airborne
Vector-borne
Foodborne
Why is it important to use aseptic techniques during medical procedures?
To save time
To prevent the introduction of pathogens
To make the procedure easier
To reduce noise
A student forgets to wash their hands after using the restroom and then prepares food for others. Which link in the chain of infection is most likely to be affected?
Reservoir
Portal of entry
Mode of transmission
Susceptible host
Which action best demonstrates the use of standard precautions?
Wearing gloves only when you see blood
Washing hands before and after patient contact
Only using masks during surgery
Not wearing any protective equipment
A healthcare worker wears a mask when caring for a patient with tuberculosis. What type of transmission is being prevented?
Droplet
Airborne
Vector-borne
Foodborne
Why are viruses not affected by antibiotics?
They are too small
They do not have the structures targeted by antibiotics
They live in water
They are only found in animals
Which of the following best describes a susceptible host in the chain of infection?
A person who is immune to disease
A person who can become infected
A person who is a carrier but not sick
A person who is a healthcare worker
What is the main goal of transmission-based precautions?
To treat infections
To prevent the spread of specific infectious agents
To clean the environment
To provide comfort to patients
Which of the following is an example of a portal of entry for pathogens?
Intact skin
Broken skin
Clean clothing
Washed hands
What is the best way to prevent the spread of most infections in a healthcare setting?
Wearing jewelry
Hand hygiene
Using air fresheners
Eating healthy foods
Which of the following is a characteristic of bacteria?
They require a host cell to reproduce
They can reproduce on their own
They are always harmful
They are not living organisms
A person sneezes into their hand and then touches a doorknob. What type of transmission could occur?
Airborne
Indirect contact
Vector-borne
Foodborne
Why is it important to follow the correct steps in hand hygiene?
To save water
To ensure all microorganisms are removed
To make hands look clean
To avoid getting wet
Which of the following is an example of a reservoir in the chain of infection?
A clean surgical instrument
A contaminated water source
A closed window
A sterile glove
A healthcare worker uses a gown and gloves when caring for a patient with a known infection. Which type of precaution is this?
Standard precaution
Transmission-based precaution
No precaution
Environmental precaution
Which of the following is the best definition of aseptic technique?
A method to keep things dirty
A method to prevent contamination by pathogens
A way to make food taste better
A way to increase infection
Why should healthcare workers avoid wearing artificial nails?
They are not fashionable
They can harbor microorganisms
They are expensive
They are uncomfortable
Which of the following best describes a pathogen?
A harmless microorganism
A microorganism that causes disease
A type of plant
A cleaning agent
