1.
Control of infection involves breaking the chain of infection. What 3 links in the infection chain must be present in order for an infection to occur?
Correct Answer
D. Infectious agent, means of transmission, susceptible host
Explanation
In order for an infection to occur, three links in the infection chain must be present. The first link is the infectious agent, which is the pathogen or microorganism that causes the infection. The second link is the means of transmission, which is how the infectious agent is spread from one person to another, such as through direct contact or through contaminated objects. The third link is the susceptible host, which is a person who is not immune to the infectious agent and can become infected. Therefore, all three links - infectious agent, means of transmission, and susceptible host - must be present for an infection to occur.
2.
You are caring for a patient with a diagnosis of meningococcal meningitis. Which of the following pieces of protective equipment is required?
Correct Answer
D. All of the above
Explanation
All of the above pieces of protective equipment are required when caring for a patient with meningococcal meningitis. Meningococcal meningitis is a highly contagious infection that can spread through respiratory droplets, so wearing a mask is necessary to prevent the transmission of the bacteria. Additionally, wearing a gown and gloves is essential to protect healthcare providers from coming into direct contact with the patient's bodily fluids, which may contain the bacteria. Therefore, all three pieces of protective equipment are necessary to ensure the safety of both the patient and the healthcare provider.
3.
If a patient is in isolation, housekeeping should not clean their room.
Correct Answer
B. False
Explanation
If a patient is in isolation, housekeeping should clean their room. This is because isolation rooms require regular cleaning and disinfection to prevent the spread of infectious diseases. Housekeeping staff should follow proper protocols and use appropriate personal protective equipment to ensure their safety while cleaning the room. Cleaning and maintaining a clean environment in isolation rooms is crucial for the well-being of the patient and to prevent the transmission of infections to other individuals.
4.
Patients with TB should be in what kind of isolation room?
Correct Answer
B. Negative Pressure
Explanation
Patients with TB should be in a negative pressure isolation room because it helps prevent the spread of airborne infectious diseases. Negative pressure rooms have a ventilation system that ensures air flows into the room, preventing contaminated air from escaping and spreading to other areas. This is crucial for patients with TB as it helps contain the infectious particles within the room, reducing the risk of transmission to healthcare workers and other patients.
5.
Contaminated sharps must be placed in a covered, puncture-resistant, leak proof container that is red or has a biohazard symbol.
Correct Answer
A. True
Explanation
Contaminated sharps, such as needles or broken glass, pose a risk of injury and infection. To ensure safe disposal, they must be placed in a container that is covered, puncture-resistant, and leak-proof. This prevents accidental injuries and minimizes the risk of contamination. The container should also be easily identifiable, either by being red or having a biohazard symbol, to alert individuals about the potential danger. Therefore, the statement that contaminated sharps must be placed in a covered, puncture-resistant, leak-proof container that is red or has a biohazard symbol is true.
6.
You must wear a mask and eye protection if fluids could splash or spray into your eyes, nose, or mouth.
Correct Answer
A. True
Explanation
Wearing a mask and eye protection is necessary when there is a possibility of fluids splashing or spraying into the eyes, nose, or mouth. This is because these body parts are susceptible to infection and wearing protective gear can prevent the entry of harmful fluids and particles. Therefore, the statement is true.
7.
You must clean equipment and work surfaces at the end of your shift or when visibly contaminated.
Correct Answer
A. True
Explanation
It is important to clean equipment and work surfaces at the end of a shift or when visibly contaminated to maintain a clean and safe working environment. This helps prevent the spread of bacteria, viruses, and other contaminants that can cause illness or contamination of products. Regular cleaning also helps to extend the lifespan of equipment and maintain its functionality. Therefore, it is necessary to clean equipment and work surfaces regularly, especially at the end of a shift or when visibly contaminated.
8.
Universal Precautions means treating everyone's blood and other bodily fluids as infectious.
Correct Answer
A. True
Explanation
Universal Precautions is a set of guidelines that healthcare professionals follow to prevent the spread of infections. It involves treating all blood and bodily fluids as potentially infectious, regardless of whether the person is known to have a contagious disease or not. This approach ensures that proper precautions are taken consistently to protect both the healthcare worker and the patient from potential infections. Therefore, the statement "Universal Precautions means treating everyone's blood and other bodily fluids as infectious" is true.
9.
If you come in contact with blood or other bodily fluids, you should wash your skin immediately.
Correct Answer
A. True
Explanation
Coming into contact with blood or other bodily fluids can expose you to various infectious diseases, such as HIV, hepatitis B, and hepatitis C. These diseases can be transmitted through direct contact with infected fluids or through broken skin or mucous membranes. Washing your skin immediately after contact can help remove any potential pathogens and reduce the risk of infection. Therefore, it is important to wash your skin promptly if you come in contact with blood or other bodily fluids.
10.
Bloodborne pathogen standards apply only to healthcare workers.
Correct Answer
B. False
Explanation
Bloodborne pathogen standards do not apply only to healthcare workers. These standards are regulations put in place by organizations such as the Occupational Safety and Health Administration (OSHA) to protect workers who may be exposed to bloodborne pathogens in various industries, not just healthcare. These standards aim to minimize the risk of transmission of diseases such as HIV, hepatitis B, and hepatitis C through blood or other potentially infectious materials. Therefore, it is incorrect to say that these standards apply only to healthcare workers.
11.
Needles should never be recapped.
Correct Answer
A. True
Explanation
Needles should never be recapped because it poses a risk of needlestick injuries. Recapping a needle increases the chances of accidentally pricking oneself or others, which can lead to the transmission of infectious diseases. To ensure safety, it is recommended to dispose of needles in puncture-resistant containers immediately after use.
12.
A quarter cup of household bleach to one gallon of water provides a strong enough solution to effectively decontaminate most surfaces, tools and equipment if left for 10 minutes.
Correct Answer
A. True
Explanation
A quarter cup of household bleach diluted in one gallon of water creates a strong solution that is capable of effectively decontaminating surfaces, tools, and equipment. This solution is potent enough to kill off most harmful bacteria, viruses, and other pathogens. However, it is crucial to allow the solution to sit for a minimum of 10 minutes to ensure proper disinfection.
13.
Bloodborne pathogens may enter your system through:
Correct Answer
D. All of the above
Explanation
Bloodborne pathogens are infectious microorganisms that can be present in blood or other bodily fluids. They can enter the body through various routes, including open cuts, dermatitis (inflammation of the skin), and mucous membranes. Open cuts provide a direct entry point for pathogens, while dermatitis can weaken the skin barrier, making it easier for pathogens to enter. Mucous membranes, such as those in the eyes, nose, and mouth, are also vulnerable to pathogen entry. Therefore, all of the mentioned options - open cuts, dermatitis, and mucous membranes - can serve as potential entry points for bloodborne pathogens.
14.
Which of the following materials could contain Bloodborne pathogens?
Correct Answer
D. All of the above
Explanation
All of the materials mentioned in the options (bloody saliva, semen, vaginal secretions) have the potential to contain bloodborne pathogens. Bloodborne pathogens are infectious microorganisms found in blood and other bodily fluids that can cause disease in humans. Saliva, semen, and vaginal secretions can all potentially contain blood if there is bleeding or if there are blood cells present in these fluids. Therefore, all of the mentioned materials could potentially contain bloodborne pathogens.
15.
You should always treat all body fluids as if they are infectious and avoid direct skin contact with them.
Correct Answer
A. True
Explanation
Treating all body fluids as if they are infectious and avoiding direct skin contact with them is a standard precaution in healthcare settings. This approach helps to minimize the risk of transmission of infectious diseases, especially those that can be transmitted through bodily fluids such as blood, urine, saliva, and others. By assuming that all body fluids are infectious, healthcare workers can protect themselves and others from potential infections and maintain a safe working environment. Therefore, the statement is true.
16.
Healthcare-associated infections are infections that:
Correct Answer
C. Are acquired by a person in a healthcare setting
Explanation
Healthcare-associated infections are acquired by a person in a healthcare setting. This means that individuals who are receiving medical care in hospitals, clinics, or other healthcare facilities can contract infections during their stay. These infections can be caused by various factors such as contaminated medical equipment, improper hand hygiene, or exposure to other infected patients or healthcare workers. It is important for healthcare facilities to implement proper infection control measures to prevent the spread of these infections and ensure patient safety.
17.
Provision of medical waste and sharps containers, as well as communication of hazards by means of signs and labels, are examples of:
Correct Answer
A. Personal protective equipment
Explanation
The provision of medical waste and sharps containers, as well as communication of hazards through signs and labels, are examples of personal protective equipment. Personal protective equipment refers to any equipment or clothing worn by individuals to protect themselves from potential hazards in the workplace. In this case, the containers and labels help to protect healthcare workers from the potential risks associated with medical waste and sharps, such as needlestick injuries or exposure to hazardous substances.
18.
Experts insist that the all-time #1 method for preventing the spread of infection is:
Correct Answer
D. Proper hand hygiene
Explanation
Proper hand hygiene is considered the all-time #1 method for preventing the spread of infection. This is because hands are the primary mode of transmission for many infectious diseases. By washing hands with soap and water or using hand sanitizer, harmful microorganisms can be effectively removed or killed, reducing the risk of infection transmission. Personal protective equipment, sterilization, and standard precautions are also important in infection prevention, but proper hand hygiene is fundamental and should always be practiced.
19.
You are caring for a patient with a diagnosis of Tuberculosis. Before entering the patient's room you must:
Correct Answer
A. Don a mask that has been fitted especially for you
Explanation
Before entering the patient's room, it is necessary to don a mask that has been fitted especially for you. This is important because tuberculosis is an airborne disease that spreads through respiratory droplets. Wearing a properly fitted mask helps to protect the healthcare worker from inhaling these infectious droplets and reduces the risk of transmission. It ensures that the mask forms a tight seal around the face, preventing any gaps that could allow the entry of contaminated air.
20.
A patient is admitted with a positive stool culture for Salmonella. Which of the following types of transmission-based precautions must be followed?
Correct Answer
A. Contact precautions
Explanation
When a patient is admitted with a positive stool culture for Salmonella, contact precautions must be followed. This is because Salmonella is primarily transmitted through direct contact with contaminated feces or surfaces. Contact precautions involve wearing gloves and gowns, and ensuring proper hand hygiene to prevent the spread of the infection through direct contact. Airborne precautions are used for diseases that are spread through tiny particles suspended in the air, while droplet precautions are used for diseases that are spread through respiratory droplets. None of the above options are applicable in this case.
21.
You have a patient who is on droplet precautions. Which of the following should be utilized when performing nasotracheal or oral suctioning?
Correct Answer
C. Mask with face shield
Explanation
When performing nasotracheal or oral suctioning on a patient on droplet precautions, it is important to utilize a mask with a face shield. This is because droplet precautions are necessary when dealing with respiratory infections that can be transmitted through droplets in the air. The mask with a face shield provides a barrier to protect the healthcare provider from any potential droplets that may be generated during the suctioning procedure. The sterile gown and sterile gloves are not specifically required for this procedure, as the main focus is on protecting the respiratory system.
22.
Which of the following is considered the best agent for hand hygiene?
Correct Answer
D. Alcohol-based hand rub
Explanation
Alcohol-based hand rub is considered the best agent for hand hygiene because it is highly effective in killing a wide range of germs, including bacteria, viruses, and fungi. It is quick-drying and does not require water, making it convenient to use in various settings. Soap and water are also effective for hand hygiene, but alcohol-based hand rub is preferred in situations where soap and water are not readily available or when there is a need for rapid hand disinfection, such as in healthcare settings. Betadine liquid and moisturizing lotion are not specifically designed for hand hygiene and may not provide the same level of germ-killing efficacy as alcohol-based hand rub.