Podcast
Questions and Answers
Which of the following factors least affects the respiratory tract's defense mechanisms against infection?
Which of the following factors least affects the respiratory tract's defense mechanisms against infection?
The acidity of gastric secretions in the gastrointestinal tract hinders peristalsis in the small intestine.
The acidity of gastric secretions in the gastrointestinal tract hinders peristalsis in the small intestine.
False (B)
How does the urinary tract's flushing action prevent infection?
How does the urinary tract's flushing action prevent infection?
It washes away microorganisms on the lining of the bladder and urethra.
In the vagina, normal flora maintain a low ______, which inhibits the growth of many pathogenic microorganisms.
In the vagina, normal flora maintain a low ______, which inhibits the growth of many pathogenic microorganisms.
Signup and view all the answers
Match the defense mechanism with factors that may alter it:
Match the defense mechanism with factors that may alter it:
Signup and view all the answers
Which of the following best describes the primary distinction between medical and surgical asepsis?
Which of the following best describes the primary distinction between medical and surgical asepsis?
Signup and view all the answers
The presence of nonpathogenic microorganisms on or in the body invariably leads to opportunistic infections, particularly in immunocompromised individuals.
The presence of nonpathogenic microorganisms on or in the body invariably leads to opportunistic infections, particularly in immunocompromised individuals.
Signup and view all the answers
In the context of infection prevention and control, what is the significance of identifying and understanding the 'chain of infection'?
In the context of infection prevention and control, what is the significance of identifying and understanding the 'chain of infection'?
Signup and view all the answers
A nurse explains to a patient that consistently practicing thorough hand hygiene is a critical measure to break the chain of infection at the _______ stage.
A nurse explains to a patient that consistently practicing thorough hand hygiene is a critical measure to break the chain of infection at the _______ stage.
Signup and view all the answers
Match the following terms with their definitions:
Match the following terms with their definitions:
Signup and view all the answers
Which scenario poses the greatest risk for Staphylococcus aureus transmission, considering its primary reservoir?
Which scenario poses the greatest risk for Staphylococcus aureus transmission, considering its primary reservoir?
Signup and view all the answers
Infection with E. coli serotype O157:H7 invariably leads to hemolytic-uremic syndrome (HUS).
Infection with E. coli serotype O157:H7 invariably leads to hemolytic-uremic syndrome (HUS).
Signup and view all the answers
A patient presents with a persistent cough, night sweats, and bloody sputum. Based on the table and the signs, what is the most likely infectious agent?
A patient presents with a persistent cough, night sweats, and bloody sputum. Based on the table and the signs, what is the most likely infectious agent?
Signup and view all the answers
A patient is diagnosed with malaria after visiting a tropical region. The infectious agent responsible for this disease is transmitted by the ______.
A patient is diagnosed with malaria after visiting a tropical region. The infectious agent responsible for this disease is transmitted by the ______.
Signup and view all the answers
Match the following organisms with the commonly associated infection/disease:
Match the following organisms with the commonly associated infection/disease:
Signup and view all the answers
Which of the following scenarios poses the LEAST risk of transmitting HIV?
Which of the following scenarios poses the LEAST risk of transmitting HIV?
Signup and view all the answers
Which patient condition necessitates the most rigorous sterile technique to prevent infection?
Which patient condition necessitates the most rigorous sterile technique to prevent infection?
Signup and view all the answers
Compromised skin integrity primarily affects a patient's susceptibility by disrupting the portal of entry in the chain of infection.
Compromised skin integrity primarily affects a patient's susceptibility by disrupting the portal of entry in the chain of infection.
Signup and view all the answers
In the context of infection control, differentiate explicitly between medical asepsis and surgical asepsis, emphasizing their respective applications.
In the context of infection control, differentiate explicitly between medical asepsis and surgical asepsis, emphasizing their respective applications.
Signup and view all the answers
A patient undergoing chemotherapy is more vulnerable to infections primarily due to the treatment's impact on the ______.
A patient undergoing chemotherapy is more vulnerable to infections primarily due to the treatment's impact on the ______.
Signup and view all the answers
Match each element of the infection chain with its implication for infection control:
Match each element of the infection chain with its implication for infection control:
Signup and view all the answers
What is the most effective method for a nurse to interrupt the 'mode of transmission' link in the chain of infection?
What is the most effective method for a nurse to interrupt the 'mode of transmission' link in the chain of infection?
Signup and view all the answers
A patient with COPD might be more susceptible to infection due to impaired mucociliary clearance in the respiratory tract.
A patient with COPD might be more susceptible to infection due to impaired mucociliary clearance in the respiratory tract.
Signup and view all the answers
Describe how diabetes mellitus increases a patient's susceptibility to infection, focusing on its impact on the host's defense mechanisms.
Describe how diabetes mellitus increases a patient's susceptibility to infection, focusing on its impact on the host's defense mechanisms.
Signup and view all the answers
What is a key characteristic that distinguishes viruses from bacteria, leading to the term 'filterable viruses'?
What is a key characteristic that distinguishes viruses from bacteria, leading to the term 'filterable viruses'?
Signup and view all the answers
Viruses, being complete cells with the ability to self-replicate independently, are susceptible to antibiotic treatments.
Viruses, being complete cells with the ability to self-replicate independently, are susceptible to antibiotic treatments.
Signup and view all the answers
Describe the fundamental structural difference between viruses and cells, and explain how this difference affects viral reproduction.
Describe the fundamental structural difference between viruses and cells, and explain how this difference affects viral reproduction.
Signup and view all the answers
Viruses gain entry to the host through various routes, including respiratory pathways, breaks in ______, or via vectors such as mosquitoes.
Viruses gain entry to the host through various routes, including respiratory pathways, breaks in ______, or via vectors such as mosquitoes.
Signup and view all the answers
Match the historical events with their impact on the understanding and management of viruses.
Match the historical events with their impact on the understanding and management of viruses.
Signup and view all the answers
During which stage of an infectious process is the host potentially infectious, even before specific symptoms manifest?
During which stage of an infectious process is the host potentially infectious, even before specific symptoms manifest?
Signup and view all the answers
Localized infections affecting only a specific area of the body generally pose a higher risk of fatality compared to systemic infections which affect the entire body.
Localized infections affecting only a specific area of the body generally pose a higher risk of fatality compared to systemic infections which affect the entire body.
Signup and view all the answers
An increase in what type of blood cells is indicative of leukocytosis, a sign of systemic inflammation?
An increase in what type of blood cells is indicative of leukocytosis, a sign of systemic inflammation?
Signup and view all the answers
In the context of healthcare, infections acquired by patients during medical treatment are known as ______ infections.
In the context of healthcare, infections acquired by patients during medical treatment are known as ______ infections.
Signup and view all the answers
Match the stage of infection with its key characteristic:
Match the stage of infection with its key characteristic:
Signup and view all the answers
Which of the following is NOT a typical trigger for the inflammatory response?
Which of the following is NOT a typical trigger for the inflammatory response?
Signup and view all the answers
Administering antimicrobial agents is solely the responsibility of physicians; nurses only assist in monitoring the patient's response.
Administering antimicrobial agents is solely the responsibility of physicians; nurses only assist in monitoring the patient's response.
Signup and view all the answers
Besides administering medications, name one supportive therapy that nurses use to aid a patient's body in defending against infection.
Besides administering medications, name one supportive therapy that nurses use to aid a patient's body in defending against infection.
Signup and view all the answers
Redness that occurs during the inflammatory response is also known as ______.
Redness that occurs during the inflammatory response is also known as ______.
Signup and view all the answers
Which organization monitors and sets standards for the prevention of health care-associated infections (HAIs)?
Which organization monitors and sets standards for the prevention of health care-associated infections (HAIs)?
Signup and view all the answers
Which characteristic of bacterial spores contributes most significantly to the challenges in eliminating them from the environment?
Which characteristic of bacterial spores contributes most significantly to the challenges in eliminating them from the environment?
Signup and view all the answers
A bacterium is observed moving rapidly via a wiggling motion of its entire cell body. Based on this characteristic, to which of the following morphological groups does it MOST likely belong?
A bacterium is observed moving rapidly via a wiggling motion of its entire cell body. Based on this characteristic, to which of the following morphological groups does it MOST likely belong?
Signup and view all the answers
Gram-positive bacteria are easily identified because their cell walls dissolve completely when exposed to a solvent during the staining process.
Gram-positive bacteria are easily identified because their cell walls dissolve completely when exposed to a solvent during the staining process.
Signup and view all the answers
What specialized structure do some bacteria form under unfavorable environmental conditions to ensure their survival?
What specialized structure do some bacteria form under unfavorable environmental conditions to ensure their survival?
Signup and view all the answers
The hair-like projections that enable some bacteria to move are called ______.
The hair-like projections that enable some bacteria to move are called ______.
Signup and view all the answers
What is the primary purpose of performing a bacterial sensitivity test?
What is the primary purpose of performing a bacterial sensitivity test?
Signup and view all the answers
Anaerobic bacteria thrive in oxygen-rich environments.
Anaerobic bacteria thrive in oxygen-rich environments.
Signup and view all the answers
Why does capsule formation in bacteria pose challenges in treatment?
Why does capsule formation in bacteria pose challenges in treatment?
Signup and view all the answers
What is the term used to describe bacteria that require oxygen to survive?
What is the term used to describe bacteria that require oxygen to survive?
Signup and view all the answers
Match each bacterial characteristic with its corresponding description:
Match each bacterial characteristic with its corresponding description:
Signup and view all the answers
Flashcards
Medical Asepsis
Medical Asepsis
Techniques that reduce the number and spread of pathogens.
Surgical Asepsis
Surgical Asepsis
Techniques that eliminate all pathogens from an area.
Chain of Infection
Chain of Infection
A series of events that lead to the spread of infections.
Standard Precautions
Standard Precautions
Signup and view all the flashcards
Pathogens
Pathogens
Signup and view all the flashcards
Skin as Defense Mechanism
Skin as Defense Mechanism
Signup and view all the flashcards
Sebum Function
Sebum Function
Signup and view all the flashcards
Saliva's Role
Saliva's Role
Signup and view all the flashcards
Respiratory Tract Defense
Respiratory Tract Defense
Signup and view all the flashcards
Susceptibility to Infection
Susceptibility to Infection
Signup and view all the flashcards
Healthcare Facility Risk
Healthcare Facility Risk
Signup and view all the flashcards
Asepsis
Asepsis
Signup and view all the flashcards
Infectious Agent
Infectious Agent
Signup and view all the flashcards
Portal of Exit
Portal of Exit
Signup and view all the flashcards
Mode of Transmission
Mode of Transmission
Signup and view all the flashcards
Staphylococcus aureus
Staphylococcus aureus
Signup and view all the flashcards
β-Hemolytic group A streptococci
β-Hemolytic group A streptococci
Signup and view all the flashcards
Escherichia coli
Escherichia coli
Signup and view all the flashcards
Neisseria gonorrhoeae
Neisseria gonorrhoeae
Signup and view all the flashcards
Varicella zoster virus
Varicella zoster virus
Signup and view all the flashcards
Malaria
Malaria
Signup and view all the flashcards
Incubation Period
Incubation Period
Signup and view all the flashcards
Prodromal Stage
Prodromal Stage
Signup and view all the flashcards
Acute Stage
Acute Stage
Signup and view all the flashcards
Convalescence
Convalescence
Signup and view all the flashcards
Localized Infection
Localized Infection
Signup and view all the flashcards
Systemic Infection
Systemic Infection
Signup and view all the flashcards
Inflammatory Response
Inflammatory Response
Signup and view all the flashcards
Common Signs of Inflammation
Common Signs of Inflammation
Signup and view all the flashcards
Health Care-Associated Infections (HAIs)
Health Care-Associated Infections (HAIs)
Signup and view all the flashcards
Triggers of Inflammatory Response
Triggers of Inflammatory Response
Signup and view all the flashcards
Bacterial Shapes
Bacterial Shapes
Signup and view all the flashcards
Aerobic vs Anaerobic Bacteria
Aerobic vs Anaerobic Bacteria
Signup and view all the flashcards
Flagella
Flagella
Signup and view all the flashcards
Spore Formation
Spore Formation
Signup and view all the flashcards
Capsule Formation
Capsule Formation
Signup and view all the flashcards
Gram-Positive vs Gram-Negative
Gram-Positive vs Gram-Negative
Signup and view all the flashcards
Sensitivity Test
Sensitivity Test
Signup and view all the flashcards
Motility
Motility
Signup and view all the flashcards
Cell Division
Cell Division
Signup and view all the flashcards
Laboratory Identification
Laboratory Identification
Signup and view all the flashcards
Viruses
Viruses
Signup and view all the flashcards
Viral Entry
Viral Entry
Signup and view all the flashcards
Viral Replication
Viral Replication
Signup and view all the flashcards
Antibiotics and Viruses
Antibiotics and Viruses
Signup and view all the flashcards
COVID-19 Management
COVID-19 Management
Signup and view all the flashcards
Study Notes
Objectives
- Explain the difference between medical and surgical asepsis.
- Explain how each element of the chain of infection contributes to infection.
- List five major classifications of pathogens.
- Identify the body's normal defenses against infections.
- Discuss nursing interventions used to interrupt the chain of infection.
- Describe the signs and symptoms of a localized infection and those of a systemic infection.
Key Terms
- asepsis
- antiseptic
- carrier
- CDC
- contamination
- disinfection
- endogenous
- exogenous
- fomite
- health-care-associated infection
- host
- infection prevention and control
- medical asepsis
- microorganism
- reservoir
- spore
- standard precautions
- sterilization
- surgical asepsis
- vector
- virulent
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the body's defense mechanisms against infection, including the respiratory, gastrointestinal, and urinary tracts, and the vagina. It also addresses asepsis, the chain of infection, and the importance of hand hygiene in preventing the spread of pathogens.