Principles of Infection Control: Master Infection Prevention Practices

Question 1

Which action is NOT recommended for preventing the spread of infection in a healthcare setting?

Accepted Answer

Leaving used medical devices on the floor

Answer

Regular handwashing with soap and water

Answer

Wearing gloves and gowns when necessary

Answer

Isolating patients with infectious diseases

Question 2

Which of the following is NOT a fundamental element of standard precautions in infection control?

Accepted Answer

Refraining from eating or drinking in patient care areas

Answer

Performing hand hygiene before and after patient contact

Answer

Wearing appropriate personal protective equipment (PPE) when necessary

Question 3

Which of the following is NOT a recommended technique for effective hand hygiene?

Accepted Answer

Using a hand sanitizer with less than 60% alcohol content

Answer

Using an alcohol-based hand rub containing at least 60% alcohol

Answer

Washing your hands with soap and water for at least 20 seconds

Answer

Drying your hands thoroughly with a disposable towel

Question 4

When caring for a patient in isolation, which type of precaution should be applied?

Accepted Answer

All of the above, depending on the specific infection

Answer

Contact precautions to prevent transmission through direct or indirect contact with an infected person or contaminated surfaces

Answer

Droplet precautions to prevent transmission through respiratory droplets produced by coughing or sneezing

Answer

Airborne precautions to prevent transmission through tiny particles that can remain suspended in the air for long distances

Question 5

What is the purpose of aseptic technique?

Accepted Answer

To prevent the introduction of microorganisms into a sterile area, such as during surgical procedures or when handling sterile instruments

Answer

To eliminate microorganisms from a surface or object, such as when cleaning a wound or disinfecting a medical device

Answer

To sterilize instruments and equipment, such as using an autoclave or ethylene oxide gas

Answer

To disinfect a patient's skin before an invasive procedure, such as an injection or surgery

Question 6

What is the primary mode of transmission for MRSA?

Accepted Answer

Contact, through direct or indirect contact with an infected person or contaminated surfaces

Answer

Airborne, through tiny particles that can remain suspended in the air for long distances

Answer

Droplet, through respiratory droplets produced by coughing or sneezing

Answer

Vehicle-borne, through contaminated food or water

Question 7

Which of the following is NOT a Standard Precaution recommended by the World Health Organization?

Accepted Answer

Isolation of infected individuals

Answer

Hand hygiene

Answer

Use of personal protective equipment

Answer

Environmental cleaning and disinfection

Question 8

Which of the following is NOT a recognized mode of transmission for microorganisms?

Accepted Answer

Telekinesis

Answer

Contact

Answer

Droplet

Answer

Airborne

Question 9

According to the latest NHS guidelines, what is the minimum duration recommended for effective hand hygiene?

Accepted Answer

30 seconds

Answer

15 seconds

Answer

45 seconds

Answer

60 seconds

Question 10

Which type of isolation precaution is indicated for patients with known or suspected airborne infections, such as measles or tuberculosis?

Accepted Answer

Airborne

Answer

Contact

Answer

Droplet

Answer

Respiratory

Question 11

What is the most effective method for disinfecting non-critical medical devices, such as stethoscopes or blood pressure cuffs?

Accepted Answer

Wiping with alcohol wipes

Answer

Soaking in bleach solution

Answer

Autoclaving

Answer

Exposure to ultraviolet light

Question 12

Which of the following is a key principle of successful infection prevention and control?

Accepted Answer

Breaking the chain of infection

Answer

Using personal protective equipment (PPE)

Answer

Administering antibiotics

Answer

Isolating infected patients

Question 13

What is the primary purpose of conducting an antimicrobial susceptibility test?

Accepted Answer

To determine which antibiotics are effective against a specific microorganism

Answer

To identify the type of microorganism causing an infection

Answer

To measure the concentration of antibiotics in a patient's blood

Answer

To assess the severity of an infection

Question 14

What is the first essential step in conducting an infection control investigation?

Accepted Answer

Identifying the source of the infection

Answer

Implementing control measures

Answer

Collecting samples for testing

Answer

Educating staff and patients

Question 15

Which of the following is a standard precaution that should be followed in all healthcare settings to prevent the transmission of infections?

Accepted Answer

Performing hand hygiene before and after patient contact, regardless of the presence of visible contamination

Answer

Wearing gloves only when handling blood or other body fluids

Answer

Using isolation gowns only when caring for patients with suspected or confirmed infections

Answer

Wearing a mask only when performing aerosol-generating procedures

Question 16

Which of the following is the most important factor in preventing healthcare-associated infections?

Accepted Answer

Hand hygiene

Answer

Isolation precautions

Answer

Antimicrobial stewardship

Answer

Environmental disinfection

Question 17

Which of the following is NOT a type of isolation precaution in healthcare settings?

Accepted Answer

Standard precautions

Answer

Contact precautions

Answer

Droplet precautions

Answer

Airborne precautions

Question 18

When performing hand hygiene, what should be the first step?

Accepted Answer

Wet hands with water

Answer

Apply soap

Answer

Rub hands together

Answer

Rinse hands with water

Question 19

Which of the following microorganisms is primarily transmitted through airborne droplets?

Accepted Answer

Mycobacterium tuberculosis

Answer

Staphylococcus aureus

Answer

Pseudomonas aeruginosa

Answer

Clostridium difficile

Question 20

What is the recommended minimum contact time for alcohol-based hand rubs?

Accepted Answer

30 seconds

Answer

15 seconds

Answer

45 seconds

Answer

60 seconds

Question 21

What is the main mode of transmission for norovirus?

Accepted Answer

Contact with contaminated food or water

Answer

Inhalation of airborne droplets

Answer

Contact with blood or bodily fluids

Answer

Insect bites

Question 22

Which of the following is NOT a core duty of healthcare professionals in upholding infection control measures?

Accepted Answer

Encouraging vaccination among patients and their families

Answer

Adhering to rigorous hand hygiene practices

Answer

Enforcing isolation precautions as per established guidelines

Answer

Ensuring comprehensive environmental disinfection

Question 23

What is the primary purpose of Droplet Precautions?

Accepted Answer

To prevent the spread of microorganisms through large respiratory droplets.

Answer

To prevent the spread of airborne microorganisms.

Answer

To prevent the spread of microorganisms through contact with contaminated surfaces.

Question 24

What is the primary reason for performing hand hygiene before and after patient contact?

Accepted Answer

To remove transient microbes and interrupt infection transmission.

Answer

To eliminate all microbes present on the hands.

Answer

To prevent skin irritation and dryness.

Answer

To comply with hospital policies.

Question 25

Which isolation measure is employed for patients with suspected or confirmed airborne infections, such as measles or tuberculosis?

Accepted Answer

Airborne isolation

Answer

Contact isolation

Answer

Droplet isolation

Answer

Reverse isolation

Question 26

What is the recommended method of hand hygiene in healthcare settings, according to the World Health Organization (WHO)?

Accepted Answer

Handwashing with soap and water for at least 20 seconds, or using alcohol-based hand rub containing at least 60% alcohol

Answer

Handwashing with soap and water only

Answer

Using alcohol-based hand rub only

Answer

Using antiseptic wipes

Question 27

Which of the following is a primary mode of transmission for gastrointestinal infections, like food poisoning caused by Salmonella?

Accepted Answer

Contact

Answer

Airborne

Answer

Bloodborne

Answer

Vector-borne

Question 28

What is the main purpose of antimicrobial susceptibility testing in clinical microbiology?

Accepted Answer

To determine the specific antibiotics that are most effective against a particular microorganism

Answer

To identify the type of infection caused by a microorganism

Answer

To monitor the development of antimicrobial resistance

Answer

To prevent the spread of infections

Question 29

Which principle forms the foundation of infection control practices?

Accepted Answer

Prevention is better than cure

Answer

Early detection and treatment

Answer

Isolation of infected individuals

Answer

Use of antibiotics

Question 30

What is the most frequently reported type of healthcare-associated infection (HAI) in hospitalized patients?

Accepted Answer

Urinary tract infection

Answer

Surgical site infection

Answer

Pneumonia

Answer

Bloodstream infection

Question 31

Which of the following is NOT a recognized mode of transmission of infectious agents?

Accepted Answer

Genetic engineering

Answer

Airborne transmission

Answer

Contact transmission

Answer

Vehicle transmission

Question 32

Which of the following is NOT an example of an isolation precaution?

Accepted Answer

Administering antibiotics to the patient

Answer

Wearing a face mask

Answer

Using gloves when handling contaminated materials

Answer

Restricting visitors to the patient's room

Question 33

What is the primary purpose of environmental disinfection in infection control?

Accepted Answer

To reduce the number of microorganisms on surfaces to a safe level

Answer

To eliminate all microorganisms from surfaces

Answer

To prevent the growth and spread of microorganisms on surfaces

Answer

To decontaminate surfaces for aesthetic purposes

Question 34

Which type of microorganism is generally most resistant to commonly used disinfectants?

Accepted Answer

Bacterial spores

Answer

Bacteria

Answer

Viruses

Answer

Fungi

Question 35

Why is environmental disinfection crucial in healthcare settings for preventing infections?

Accepted Answer

It minimizes microbial contamination on surfaces and objects.

Answer

It eliminates all microorganisms from the environment.

Answer

It's only essential in high-risk areas like operating rooms.

Question 36

Which of the following is NOT a recognized mode of disease transmission?

Accepted Answer

Telepathy

Answer

Contact

Answer

Airborne

Answer

Vector-borne

Question 37

Which type of isolation precaution is used for patients with infections that can be spread through respiratory droplets?

Accepted Answer

Droplet isolation

Answer

Protective isolation

Answer

Airborne isolation

Answer

Contact isolation

Question 38

What is the main goal of environmental disinfection in infection control?

Accepted Answer

To reduce or eliminate the number of disease-causing microorganisms on surfaces

Answer

To eliminate all microorganisms from the environment

Answer

To sterilize surgical instruments

Answer

To decontaminate reusable medical devices

Question 39

What is the primary role of the infection control team in healthcare facilities?

Accepted Answer

Develop and implement infection prevention and control policies and procedures

Answer

Conduct laboratory testing for infectious agents

Answer

Provide direct patient care

Question 40

Which of the following factors does NOT affect the effectiveness of hand hygiene?

Accepted Answer

Type of soap

Answer

Duration of handwashing

Answer

Presence of organic matter

Answer

Temperature of water

Question 41

In healthcare settings, what is the appropriate method of sharps disposal?

Accepted Answer

Sharps container

Answer

Autoclave

Answer

Regular trash bin

Answer

Needle recapping

Question 42

Which practice is considered a key measure in preventing surgical site infections?

Accepted Answer

Prophylactic antibiotics

Answer

Shaving the surgical site

Answer

Restricting visitors in the recovery room

Answer

Patient self-care