Transmission of Microorganisms: Modes and Prevention Strategies

Question 1

Which practice is NOT a recommended infection control measure for healthcare workers?

Accepted Answer

Eating in patient care areas

Answer

Regular handwashing

Answer

Wearing appropriate PPE

Answer

Adhering to isolation precautions

Question 2

Which of the following types of transmission involves direct contact between an infected individual and a susceptible host?

Accepted Answer

Contact transmission

Answer

Droplet transmission

Answer

Airborne transmission

Answer

Vehicle transmission

Question 3

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

Accepted Answer

Mycobacterium tuberculosis

Answer

Staphylococcus aureus

Answer

Streptococcus pneumoniae

Answer

Salmonella typhimurium

Question 4

What is the primary mode of transmission for the Human Immunodeficiency Virus (HIV)?

Accepted Answer

Contact transmission

Answer

Droplet transmission

Answer

Airborne transmission

Answer

Vehicle transmission

Question 5

Which of the following factors does NOT play a role in influencing the transmission of microorganisms?

Accepted Answer

Extraterrestrial events

Answer

Characteristics of the host

Answer

Environmental conditions

Answer

Properties of the microorganism

Question 6

Which practice is most effective in preventing the spread of infection via contact transmission?

Accepted Answer

Thorough hand hygiene

Answer

Respiratory hygiene practices

Answer

Regular environmental cleaning

Answer

Antibiotic therapy

Question 7

Which of the following is NOT a recommended measure to prevent the spread of infection via droplet transmission?

Accepted Answer

Taking antibiotics

Answer

Wearing a face mask

Answer

Coughing or sneezing into a tissue

Answer

Avoiding crowded or poorly ventilated areas

Question 8

Which device is commonly used to measure the size of respiratory droplets?

Accepted Answer

Cascade impactor

Answer

Andersen sampler

Answer

Nuclepore filter

Answer

Slit sampler

Question 9

Which principle is fundamental to effective infection prevention and control practices?

Accepted Answer

Breaking the chain of infection

Answer

Isolating infectious individuals

Answer

Using personal protective equipment

Answer

Administering antibiotics

Question 10

In a crowded waiting room, a person with a respiratory infection coughs. Which transmission mode is most likely responsible for potentially spreading the infection to others?

Accepted Answer

Droplet transmission

Answer

Contact transmission

Answer

Airborne transmission

Question 11

Contact precautions are implemented to prevent the spread of microorganisms through:

Accepted Answer

Direct contact with an infected person or contaminated objects

Answer

Droplets produced by an infected person

Answer

Airborne contamination

Answer

Vectors

Question 12

Which type of isolation is used for patients with airborne infections?

Accepted Answer

Negative pressure isolation

Answer

Contact isolation

Answer

Droplet isolation

Answer

Protective environment isolation

Question 13

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

Accepted Answer

Telepathy

Answer

Airborne

Answer

Droplet

Answer

Contact

Question 14

Which transmission mode involves microorganisms being carried in small respiratory droplets produced by coughing, sneezing, or talking?

Accepted Answer

Droplet

Answer

Airborne

Answer

Contact

Answer

Fomite

Question 15

Which factor influences the transmission of microorganisms via contact?

Accepted Answer

Duration and nature of contact

Answer

UV radiation intensity

Answer

Humidity levels

Answer

Airflow patterns

Question 16

Which type of microorganism is most likely to be transmitted via airborne transmission?

Accepted Answer

Small, lightweight, and non-spore-forming

Answer

Gram-negative

Answer

Obligate anaerobes

Answer

Large and heavy

Question 17

Which of the following is a measure that can be taken to prevent the spread of infection during droplet transmission?

Accepted Answer

Wearing a surgical mask

Answer

Using an air purifier

Answer

Improving ventilation

Answer

Increasing humidity levels

Question 18

Which of the following is a material that can harbor microorganisms and transmit them through indirect contact?

Accepted Answer

Stethoscope

Answer

Food

Answer

Water

Answer

Air

Question 19

Which of the following individuals is most at risk of acquiring an infection via contact transmission?

Accepted Answer

Patient with an open wound

Answer

Office worker at a desk

Answer

Visitor in a waiting room

Answer

Healthcare worker wearing gloves

Question 20

Which of the following is a factor that can increase the likelihood of airborne transmission of microorganisms?

Accepted Answer

Air conditioning or fans that circulate air

Answer

Low temperature

Answer

Natural ventilation

Answer

High humidity

Question 21

Which of the following is a potential consequence of transmission of microorganisms?

Accepted Answer

Infection

Answer

Hypothermia

Answer

Malnutrition

Answer

Dehydration

Question 22

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

Accepted Answer

Ingestion

Answer

Droplet

Answer

Airborne

Answer

Contact

Question 23

Which of the following is an example of a fomite?

Accepted Answer

Bed linen

Answer

Sneeze

Answer

Cough

Question 24

What is the most effective way to prevent transmission of microorganisms through airborne transmission?

Accepted Answer

Wearing a well-fitting mask

Answer

Maintaining a distance of 2 meters

Answer

Using hand sanitizer frequently

Answer

Avoiding touching surfaces

Question 25

Which of the following is a healthcare-associated infection (HAI)?

Accepted Answer

Surgical site infection

Answer

Common cold

Answer

Flu

Answer

Eczema