The most effective method to prevent healthcare-associated infections is:
Hand hygiene is the single most effective measure to prevent infection transmission.
. Asepsis refers to:
Rationale: Asepsis is the state of being free from pathogenic microorganisms.
Surgical asepsis aims to:
Surgical asepsis maintains a sterile environment free from all microorganisms.
Another term for hospital-acquired infection is:
Nosocomial infection refers to infections acquired in healthcare facilities.
Sharps such as needles should be disposed of in:
White containers prevent needle-stick injuries.
What is the primary goal of infection control in healthcare settings?
Infection control aims to prevent the spread of infectious agents among patients, healthcare workers, and visitors.
Sterile gloves are required for:
Catheterization requires surgical asepsis.
Hospital-acquired infections are infections that:
HAIs typically develop after admission and were not incubating at entry.
Which procedure requires surgical asepsis?
Invasive procedures require sterile technique to prevent infection.
Which is included in standard precautions?
Standard precautions include hand hygiene, PPE, respiratory hygiene, and safe injections.
Standard precautions should be applied to:
Standard precautions assume that all blood and body fluids may be infectious.
Broken glass vials are disposed of in:
Blue containers are designated for glass waste.
According to WHO, hand hygiene should be performed:
Hand hygiene is essential before and after every patient interaction.
Gloves should be worn when:
Gloves protect against exposure to infectious materials.
Which patient is at greatest risk for HAI?
Invasive devices increase infection risk.
Used IV tubing should be discarded in:
Contaminated recyclable plastic waste is disposed of in red bags.
Which color bag is used for disposal of human anatomical waste in biomedical waste management?
Yellow bags are used for human anatomical and soiled waste.
Which statement about a sterile field is correct?
Moisture allows microorganisms to pass through surfaces by capillary action.
Catheter-associated urinary tract infection (CAUTI) is prevented by:
Closed drainage reduces microbial entry.
Segregation of biomedical waste should occur:
Immediate segregation prevents contamination and facilitates proper disposal.
Asepsis refers to:
Medical asepsis involves practices that reduce the number and spread of microorganisms.
The first step after a needle-stick injury is:
Immediate cleansing reduces contamination risk.
Which infection is most commonly associated with urinary catheters?
Indwelling catheters are a major cause of healthcare-associated UTIs.
A sterile object held below waist level is considered:
Sterile objects must remain within the visual field and above waist level.
Which organism commonly causes Clostridioides difficile infection?
C. difficile produces spores and causes antibiotic-associated diarrhea.
A patient with MRSA infection should be placed under:
MRSA is transmitted mainly by direct or indirect contact.
The most common route of transmission of HAIs is:
Contact transmission, especially via hands, is the most common route.
Which microorganism is commonly associated with hospital-acquired infections?
S. aureus, especially MRSA, is a common nosocomial pathogen.
Which PPE protects the mucous membranes of the eyes?
Goggles protect against splashes and droplets.
Ethylene oxide gas sterilization is mainly used for:
Ethylene oxide is suitable for materials that cannot tolerate high temperatures.
The last item removed during doffing PPE is:
The mask is removed last after leaving the contaminated area.
The nurse notices a tear in a sterile glove during a procedure. The nurse should:
A torn glove compromises sterility and increases infection risk.
Surveillance in infection control refers to:
Surveillance helps identify and control healthcare-associated infections.
Which disease requires both airborne and contact precautions?
Chickenpox spreads through airborne transmission and direct contact.
A reservoir in the chain of infection refers to:
Reservoirs sustain and support microbial growth.
Which method is most commonly used for sterilizing surgical instruments?
Steam under pressure effectively destroys all microorganisms and spores.
Which precaution is required for tuberculosis?
TB spreads through airborne droplet nuclei.
A nurse should change gloves:
Gloves must be changed whenever contamination occurs.
An N95 respirator is used for:
N95 masks filter airborne particles effectively.
The standard autoclave temperature is:
Standard autoclaving is performed at 121°C under pressure.
The process of destroying pathogenic microorganisms but not spores is called:
Disinfection eliminates most pathogens except bacterial spores.
Which of the following is NOT a standard precaution?
Isolation is based on specific transmission risks, not routine practice.
Reverse isolation is intended to:
Reverse isolation safeguards immunocompromised patients.
Which disease requires droplet precautions?
Influenza spreads through respiratory droplets.
Which factor increases the risk of SSI?
Diabetes impairs wound healing and increases infection risk.
The portal of entry for respiratory infections is usually:
Respiratory pathogens commonly enter through the respiratory system.
Which item should NEVER be recapped after use?
Recapping increases the risk of needle-stick injuries.
Human blood-soaked dressings should be discarded in:
Soiled waste contaminated with blood/body fluids goes into yellow bags.
For a patient with C. difficile infection, hand hygiene should preferably be done using:
Soap and water are more effective in removing spores.
Which hospital-acquired infection is associated with central venous catheters?
Central Line-Associated Bloodstream Infection (CLABSI) occurs due to contaminated central lines.
Which healthcare worker is responsible for infection control?
Infection prevention is a shared responsibility.
The chain of infection includes all EXCEPT:
Weather is not a component of the chain of infection.
Which nursing action best prevents cross-infection between patients?
Hand hygiene remains the most effective measure to prevent cross-infection.
When removing gloves, hand hygiene should be performed:
Gloves do not replace hand hygiene.
The Central Sterile Supply Department (CSSD) is responsible for:
CSSD ensures availability of sterile instruments and supplies throughout the hospital.
Which is an example of a healthcare-associated bloodstream infection?
Central lines are common sources of bloodstream infections.
Which infection control measure is most important during dressing changes?
Proper aseptic technique prevents wound contamination.
Which microorganism is commonly used in biological indicators for autoclaves?
These spores are highly resistant and used to verify steam sterilization effectiveness.
Semi-critical items require:
Semi-critical items contact mucous membranes.
The nurse enters an isolation room. Which action should be performed first?
Hand hygiene is always the first step before patient contact.
Which infection control measure is most effective during an outbreak investigation?
Prompt identification and isolation help break transmission chains.
Which infection is most commonly associated with mechanical ventilation?
Ventilator-Associated Pneumonia is a major ICU infection.
A patient develops fever 72 hours after admission with no signs of infection on admission. This is most likely:
Infections developing after 48 hours of hospitalization are generally considered HAIs.
The nurse notices that a sharps container is three-fourths full. What should be done?
Overfilled sharps containers increase injury risk.
The infection control committee in a hospital is primarily responsible for:
Infection surveillance and control measures are key committee functions.
Which action by the nurse breaks the chain of infection at the mode of transmission stage?
Hand hygiene interrupts transmission.
The Bowie-Dick test is used to evaluate:
It checks whether air is adequately removed and steam penetrates the load.
Which hospital department has the highest risk for HAIs?
Critically ill patients and invasive devices increase infection risk.
Which organism commonly causes healthcare-associated diarrhea?
C. difficile is a major cause of antibiotic-associated diarrhea.
Which patient requires contact precautions?
MRSA is spread through direct and indirect contact.
Which color-coded BMW container is used for sharps waste?
Sharps are disposed of in puncture-proof white containers.
Surgical Site Infection (SSI) occurs:
SSIs develop at the operative site following surgery.
Which action is appropriate when handling contaminated linen?
Shaking disperses microorganisms into the air.
Which patient care item requires sterilization?
Critical items entering sterile tissues require sterilization.
The “susceptible host” in the chain of infection refers to:
Infection occurs when a susceptible host lacks adequate defenses.
A sterile package becomes wet while being transported. The nurse should:
Moisture causes contamination through strike-through.
A nurse accidentally touches a sterile field with an ungloved hand. What should be done?
Any contact with a non-sterile object contaminates the sterile field.
The most important infection prevention strategy in nursing practice is:
Hand hygiene remains the cornerstone of infection prevention.
The most important factor contributing to antimicrobial resistance is:
Inappropriate antibiotic use promotes resistant organisms.
A patient develops pneumonia after 5 days of mechanical ventilation. This is classified as:
Pneumonia developing during mechanical ventilation is VAP.
A nurse receives a needle-stick injury from a patient known to have hepatitis B. The first action is:
Immediate cleansing reduces exposure risk.
Which biomedical waste category includes discarded blood bags?
Blood bags are categorized as soiled infectious waste.
Which item is considered a critical item under Spaulding classification?
Critical items enter sterile tissues and require sterilization.
The purpose of outbreak surveillance is to:
Early detection allows rapid intervention.
Which statement best summarizes infection control?
Effective infection control depends on teamwork, surveillance, education, and adherence to precautions.
Which action helps prevent Catheter-Associated Urinary Tract Infection (CAUTI)?
Proper insertion and maintenance reduce CAUTI risk.
A patient with pulmonary tuberculosis is admitted. Which room assignment is most appropriate?
Airborne infections require negative-pressure rooms.
The incubation period is:
This period varies depending on the infectious agent.
Which patient is at highest risk for infection?
Surgery and diabetes both increase infection susceptibility.
Endoscopes are generally classified as:
Endoscopes contact mucous membranes and require high-level disinfection.
Which factor contributes most to the emergence of multidrug-resistant organisms (MDROs)?
Overuse and misuse of antibiotics drive antimicrobial resistance.
A nurse is preparing a sterile field. Which action contaminates the field?
A sterile field must remain in constant view.
Which statement regarding sterile gloves is correct?
Sterile gloves are essential during surgical asepsis.
A patient with suspected meningococcal meningitis should be placed on:
Meningococcal disease spreads through respiratory droplets.
A nurse performs hand hygiene before touching a patient. Which WHO Moment of Hand Hygiene is demonstrated?
This is WHO Hand Hygiene Moment 1.
Which healthcare-associated infection is most likely in a patient with a central venous catheter?
Central venous catheters are associated with bloodstream infections.
A nurse caring for a patient with diarrhea due to C. difficile should:
C. difficile spores are best removed with soap and water.
Which disease requires airborne precautions?
TB spreads through airborne droplet nuclei.
Ventilator-associated pneumonia is commonly associated with:
VAP occurs in patients receiving mechanical ventilation.
Which of the following is considered the “gold standard” for monitoring steam sterilization?
Biological indicators directly assess sterilization effectiveness using highly resistant bacterial spores.
Which action is a component of an antimicrobial stewardship program?
Antimicrobial stewardship ensures effective treatment while minimizing resistance.
Which factor most increases susceptibility to infection?
Poor nutrition weakens immune defenses.
Which of the following is the correct sequence for donning PPE?
This sequence ensures maximum protection while minimizing contamination.
Which practice reduces Ventilator-Associated Pneumonia (VAP)?
Head elevation reduces aspiration risk.
Which of the following is a portal of exit for respiratory pathogens?
Respiratory pathogens leave the host through coughing and sneezing.
Which statement best describes infection prevention?
Effective infection control requires participation from all healthcare workers.
Which patient requires reverse isolation?
Immunocompromised patients need protection from environmental pathogens.
Which infection control measure is most important before inserting a urinary catheter?
Catheter insertion requires sterile technique to prevent CAUTI.
Medical asepsis is also known as:
Medical asepsis focuses on reducing microorganisms through clean practices.
Sterilization destroys:
Sterilization is the highest level of microbial destruction.
Which patient is most susceptible to opportunistic infections?
Reduced immunity greatly increases infection risk.
A patient develops a fever 4 days after admission and blood cultures are positive. This is most likely:
Infection developing after 48 hours of hospitalization is generally considered HAI.
A nurse removes gloves after wound care and immediately leaves the room. What error occurred?
Hand hygiene is mandatory after glove removal.
Used gloves contaminated with blood should be discarded in:
Contaminated recyclable plastic waste goes into the red category.
Which microorganism is commonly associated with ventilator-associated pneumonia (VAP)?
Pseudomonas is a frequent cause of VAP in critically ill patients.
The reservoir for most healthcare-associated pathogens is:
Reservoirs include patients, staff, equipment, and environmental surfaces.
Which of the following is classified as a Surgical Site Infection (SSI)?
SSI involves infection at or near the surgical incision.
Which of the following is a non-critical item?
Non-critical items contact intact skin only.
What is the recommended position to reduce ventilator-associated pneumonia risk?
Elevation reduces aspiration and VAP risk.
Hand hygiene using alcohol-based hand rub is recommended when:
Alcohol-based rubs are effective when hands are not visibly contaminated.
A nurse caring for multiple patients should perform hand hygiene:
Hand hygiene between patients prevents cross-transmission of pathogens
Which measure helps prevent CLABSI?
Removing unnecessary central lines reduces CLABSI risk.
Which nursing intervention reduces the risk of CAUTI?
Closed drainage prevents microbial entry.
Which statement regarding biomedical waste segregation is correct?
Immediate segregation reduces contamination and improves safety.
Which of the following is an example of indirect contact transmission?
Indirect transmission occurs via contaminated objects (fomites).
The most common source of pathogens causing healthcare-associated infections is:
Contaminated hands are the major source of pathogen transmission.
Which indicator provides the most reliable evidence that sterilization has occurred?
Biological indicators containing bacterial spores are the gold standard for monitoring sterilization.
Which of the following is NOT a component of standard precautions?
Airborne isolation is a transmission-based precaution, not a standard precaution.
Which patient should be placed in protective isolation?
Protective isolation prevents infections in immunocompromised patients.
The first step in processing reusable instruments is:
Organic matter must be removed before disinfection or sterilization.
Which PPE is essential when caring for a patient with active tuberculosis?
N95 respirators filter airborne particles containing Mycobacterium tuberculosis.
Which patient would require protective (reverse) isolation?
Reverse isolation protects immunocompromised patients from infection.
Which healthcare worker action most effectively interrupts the chain of infection?
Hand hygiene is the most effective infection prevention measure.
Breaking the chain of infection can be achieved by:
Each measure interrupts transmission pathways.
Which patient should be prioritized for isolation?
Measles is highly contagious and requires airborne precautions.
The recommended duration for handwashing with soap and water is at least:
Effective handwashing requires at least 20 seconds.
Which infection control practice is most effective in reducing multidrug-resistant organisms?
Proper antibiotic use and hand hygiene reduce resistance spread.
Which disinfectant is commonly used for routine environmental cleaning in hospitals?
Sodium hypochlorite is effective against a wide range of pathogens.
A patient with influenza should be managed using:
Influenza spreads mainly via respiratory droplets.
Which of the following is a healthcare-associated infection indicator?
Infection rates are used to monitor hospital infection control performance.
Which infection control measure is most important during an epidemic outbreak?
Rapid identification and isolation help control outbreaks.
During an outbreak investigation, the FIRST step is:
Before interventions, the outbreak must be confirmed.
The infection control nurse’s primary responsibility is:
Surveillance, education, and prevention are core functions of infection control programs.
Which HAI quality indicator measures infections related to central venous catheters?
CLABSI tracks central line-associated bloodstream infections.
Which of the following patients has the highest risk of developing a healthcare-associated infection (HAI)?
Advanced age, critical illness, invasive devices, and prolonged hospitalization increase HAI risk.
A nurse caring for a patient with chickenpox should use:
Varicella spreads through both airborne and direct contact routes.
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