A patient is diagnosed with a multidrug-resistant organism (MDRO) in his surgical wound and asks the nurse what this means. What is the nurse's best response? (Select all that apply.)
Rationale:
Multidrug-resistant organisms (MDROs) are bacteria that have developed resistance to one or more broad-spectrum antibiotics, making infections difficult to treat effectively. This resistance means standard antibiotics may not work, necessitating careful selection of treatment options to manage the infection and prevent further resistance development, complicating patient recovery and increasing healthcare challenges.
A: There is more than one organism in the wound that is causing the infection. This option confuses multidrug resistance with polymicrobial infection, which involves multiple organisms rather than resistance to antibiotics by a single pathogen.
B: The antibiotics the patient has received are not strong enough to kill the organism. This statement implies inadequate potency rather than resistance, which specifically refers to the organism's ability to survive despite antibiotic presence.
C: The patient will need more than one type of antibiotic to kill the organism. While sometimes true, this is not always necessary; MDROs resist certain drugs, but treatment depends on susceptibility testing, not automatically requiring multiple antibiotics.
What type of chart/graph could you use to BEST display discrete causes of medication errors and the cumulative percentage of all errors?
Rationale:
A Pareto chart could best display discrete causes of medication errors and the cumulative percentage of all errors.
Pareto charts combine bars and a line graph to show individual categories' frequency and their cumulative impact, ideal for prioritizing problems by significance. They visually differentiate major causes from minor ones, facilitating focused interventions. This dual representation effectively highlights the most critical medication error sources alongside their overall contribution percentage.
A: Bar chart lacks the cumulative percentage line, so it cannot show total impact alongside discrete causes.
B: Line graph primarily shows trends over time, not discrete categories or cumulative percentages for error causes.
D: Pie chart illustrates proportions but fails to display cumulative percentages or rank discrete causes effectively.
Which of the following is/are recognised adverse reactions to pneumococcal vaccines?
Rationale:
Pain and induration at the vaccine site can last for 3 days following PPV. This is a well-documented localized reaction commonly observed after pneumococcal polysaccharide vaccine administration. Such symptoms typically resolve without intervention and reflect the body's immune response to the vaccine. These local adverse effects are expected and transient, distinguishing them from more severe systemic reactions that are less frequent.
A: Most patients who receive PPV23 develop a mild fever incorrectly generalizes fever prevalence, which is uncommon and not characteristic of a majority of vaccine recipients.
B: Systemic reactions occur quite often with both pneumococcal vaccines exaggerates frequency; systemic adverse effects are relatively rare and not a usual occurrence in routine immunization.
C: Dredache is common after PPV23 misidentifies a symptom; "dredache" is not a recognized medical term or adverse effect associated with pneumococcal vaccination.
Older people, immunocompromised people, babies, hospitalised patients and pregnant women are usually more at risk of infection. True or false?
Rationale:
Older people, immunocompromised people, babies, hospitalised patients and pregnant women are usually more at risk of infection is true.
This statement accurately reflects the increased vulnerability of these groups due to weakened or developing immune systems, exposure to pathogens in healthcare settings, or physiological changes during pregnancy. Their compromised defenses make infections more likely and potentially severe, necessitating additional precautions to protect their health effectively.
B: FALSE This option contradicts established medical knowledge by denying the increased susceptibility of these vulnerable populations, ignoring critical immunological and environmental factors that contribute to their higher infection risk.
A patient presents with pneumonia. Which priority intervention should be included in the plan of care for this patient?
Rationale:
Observe the patient for decreased activity tolerance. Monitoring activity tolerance is vital in pneumonia care because it helps identify respiratory compromise or fatigue early, allowing timely interventions to prevent deterioration. Pneumonia affects oxygen exchange, so assessing activity levels directly reflects the patient’s respiratory status and guides the healthcare team in adjusting treatment plans effectively to ensure recovery.
B: Assume the patient is in pain and treat accordingly. Pain management is important but not the priority in pneumonia care; respiratory status and oxygenation demand more immediate attention to prevent complications.
C: Provide the patient ice chips as requested. Giving ice chips may not address the primary respiratory needs or hydration status and could risk aspiration if the patient has impaired swallowing or respiratory distress.
D: Maintain the room temperature at 65° F. Room temperature control is generally supportive but does not directly influence pneumonia treatment priorities or immediate respiratory function assessment.
During the winter of 2017, 645 persons died from influenza related illness in Columbus. The population of Columbus was 1.2 million. What was the cause-specific mortality rate?
Rationale:
The cause-specific mortality rate was 54 per 100,000. This rate is calculated by dividing the number of influenza-related deaths (645) by the total population (1,200,000) and then multiplying by 100,000 to standardize the rate, providing a meaningful comparison of mortality risk within the population due to this specific cause during that time frame.
B: 5.30% represents a percentage rather than a standardized rate, which is unsuitable for cause-specific mortality as it does not reflect deaths per population unit.
C: 54% vastly overestimates mortality, implying over half the population died, which is not supported by the data and misinterprets the concept of mortality rates.
D: 0.01% underestimates mortality by incorrectly converting deaths into a proportion, failing to adjust the figure to a per 100,000 population rate, thus minimizing the impact.
An appropriate indicator to monitor process compliance would be:
Rationale:
Appropriate antibiotic dosage is an appropriate indicator to monitor process compliance. This measure directly reflects adherence to established clinical guidelines and protocols regarding medication administration, ensuring that patients receive the correct amount of antibiotics at the right time. Monitoring this process helps identify deviations in practice, allowing for timely interventions to maintain treatment efficacy and prevent resistance development.
A: Class 1 SSI rate reflects an outcome rather than adherence to specific procedural steps, thus it does not directly measure process compliance.
C: CLABSI in the NICU represents an infection outcome, not the consistent execution of procedural protocols, so it cannot effectively monitor process adherence.
D: Infections caused by multi-drug resistant organisms indicate result trends influenced by various factors, lacking direct linkage to specific procedural compliance monitoring.
A child ady in a clinical risk group who has never received any influenza vaccine before should have:
Rationale:
A child already in a clinical risk group who has never received any influenza vaccine before should have two doses of LAIV at least 4 weeks apart.
This schedule ensures optimal immune response and protection in high-risk children, who need priming with two doses of the live attenuated influenza vaccine (LAIV) to build sufficient immunity, as per immunization guidelines for previously unvaccinated at-risk pediatric populations.
A: A dose of inactivated quadrivalent vaccine, followed by a dose of LAIV 4 weeks later recommends an incorrect sequence, not aligning with standard priming protocols for risk group children starting influenza vaccination.
B: A dose of LAIV followed by a dose of inactivated quadrivalent vaccine 4 weeks later reverses the recommended approach, which may not elicit the most effective immune priming in high-risk pediatric patients.
C: One dose of LAIV provides insufficient immunologic priming for children in clinical risk groups who have never been vaccinated, potentially leaving them vulnerable to influenza infection.
Direct observation of performance by an individual of a specific skill may yield a temporary and artificial high result. This phenomenon is known as the:
Rationale:
Direct observation of performance by an individual of a specific skill may yield a temporary and artificial high result is known as the Hawthorne effect. This effect occurs because individuals alter their behavior when they know they are being watched, often improving performance temporarily. It highlights the influence of observation on behavior rather than actual skill improvement or measurement accuracy.
B: Measure of success refers generally to criteria used to evaluate outcomes and does not specifically address behavioral changes caused by observation, making it unrelated to temporary performance boosts.
C: Score of inflation risk pertains to financial assessments of risk and has no connection to behavioral changes or performance alteration due to observation in skill assessments.
D: Robertson's rule is not a recognized term related to behavioral observation effects or temporary performance changes, thus it does not explain the phenomenon described.
The director has requested that the IP summarize the results of an education program to five different groups within the institution. The director specifically requests that the method used not only indicate the overall mean score for each group but also aid a simple comparative analysis for all who participated. The best data display technique to summarize these would be:
Rationale:
A bar chart is the best data display technique to summarize the results for five groups, showing overall mean scores and facilitating straightforward comparisons. Bar charts visually represent quantities side-by-side, making it easier to compare differences and trends across groups simultaneously. They are simple, clear, and effective for presenting comparative data to diverse audiences, meeting the director’s needs perfectly.
A: A line list presents raw data entries without summarizing or visually comparing group means, making it unsuitable for quick comparative analysis among multiple groups.
B: A pie chart displays proportions of a whole, not mean scores, and is less effective for comparing values across distinct groups side-by-side.
D: A spreadsheet organizes raw or summarized data but lacks immediate visual clarity and ease of comparison for non-technical audiences.
Where should alcohol handrub be made available?
Rationale:
Alcohol handrub should be made available at the point of care.
Having alcohol handrub at the point of care ensures immediate accessibility for healthcare workers to perform hand hygiene before and after patient contact, reducing the risk of cross-contamination and healthcare-associated infections. This strategic placement promotes compliance with infection control protocols by integrating hand hygiene seamlessly into clinical workflows.
A: In the waiting room Alcohol handrub in waiting rooms is less effective because it is distant from clinical interactions where immediate hand hygiene is critical, limiting its impact on infection prevention during patient care.
B: In the bathrooms Bathrooms are designated for handwashing with soap and water, not for alcohol handrub placement, which is intended for quick disinfection near patient care activities.
C: Placed at the washbasins Washbasins are primarily for handwashing; alcohol handrub is intended for rapid use at patient care sites, facilitating prompt hand hygiene without the need for water.
The nurse is caring for a patient in labor and delivery. When near completing an assessment of the patient's cervix, the electronic infusion device being used on the intravenous (IV) infusion alarms. Which sequence of actions is most appropriate for the nurse to take?
Rationale:
Complete the assessment, remove gloves, wash hands, and assess the intravenous infusion.
This sequence ensures the patient assessment is thorough before addressing the alarm. Removing gloves and washing hands maintains infection control standards. Finally, assessing the IV infusion addresses the alarm safely and effectively, preventing potential complications while adhering to proper clinical protocols during labor and delivery care.
A: Complete the assessment, remove gloves, and silence the alarm. This neglects hand hygiene and fails to evaluate the IV site, risking infection and missing potential IV complications.
B: Discontinue the assessment, silence the alarm, and assess the intravenous site. Interrupting the assessment prematurely can miss critical patient data, and silencing the alarm before hand hygiene compromises safety.
D: Discontinue the assessment, remove gloves, use hand gel, and assess the intravenous infusion. Stopping the assessment early may omit important information, and hand gel is less effective than handwashing in this sterile context.
Which of the following is/are true when giving a vaccine?
Rationale:
The correct statement when giving a vaccine is: If the skin is clean no further cleaning is necessary. This approach minimizes unnecessary skin irritation and delays during vaccination, assuming the skin is visibly clean. Studies show that additional disinfection does not significantly reduce infection risk in such cases, making this practice both efficient and safe in routine immunization settings.
B: The skin should be disinfected prior to administering any vaccine assumes universal cleaning, which is unnecessary if the skin is already clean, potentially causing delays and discomfort without proven infection reduction benefits.
C: Only visibly dirty skin needs to be washed with soap and water suggests selective cleansing but ignores that visibly clean skin does not require washing, making this statement partially misleading about standard vaccination protocols.
D: The needle should be sufficiently long (25mm) for all ages except for pre-term and very small children incorrectly generalizes needle length; appropriate needle size varies by age, weight, and injection site, not just prematurity or size.
The IP is teaching nurses how to assess injection risks in patients. Depletion of what cell type provides the best indication of susceptibility to most bacterial infections?
Rationale:
Neutrophil depletion provides the best indication of susceptibility to most bacterial infections. Neutrophils are the primary white blood cells responsible for phagocytosis and destruction of bacteria. Their reduction severely compromises the innate immune response, increasing vulnerability to bacterial pathogens. Monitoring neutrophil levels helps predict infection risk, guiding clinical decisions in managing immunocompromised patients effectively.
A: Monocyte depletion indicates impaired antigen presentation and chronic inflammation control but does not directly correlate with susceptibility to most bacterial infections as neutrophils do.
B: Eosinophils primarily combat parasitic infections and mediate allergic responses, making their depletion less relevant for bacterial infection risk assessment.
D: Lymphocytes focus on viral and adaptive immunity; their reduction indicates viral susceptibility rather than a broad vulnerability to bacterial infections.
What are the three categories of transmission-based precautions?(Select one that does not apply)
Rationale:
The three categories of transmission-based precautions do not include Clinical precautions. Transmission-based precautions specifically address infection control measures tailored to the mode of pathogen spread, focusing on Contact, Droplet, and Airborne routes. Clinical precautions is not a recognized category in this context, as it does not correspond to established infection control protocols related to transmission modes in healthcare settings.
A: Contact precautions prevent spread through direct or indirect physical contact with an infected person or contaminated surfaces, clearly defining one of the three recognized transmission-based precaution categories.
B: Droplet precautions mitigate infection risks from pathogens transmitted by large respiratory droplets, fitting precisely within the established categories for controlling disease spread.
C: Airborne precautions target infections spread via tiny aerosolized particles, representing a core category designed to contain infections transmitted through the air over distances.
D: Clinical precautions lack classification as a transmission-based precaution category and do not specifically address transmission routes or infection control measures in healthcare environments.
Specific immunoglobulins are available for:
Rationale:
Specific immunoglobulins are available for rabies. Rabies immunoglobulin provides immediate passive immunity by supplying antibodies directly to neutralize the rabies virus, especially crucial after exposure. It complements the rabies vaccine, accelerating protection in the critical window before active immunity develops, thereby preventing the fatal progression of the disease following potential infection through animal bites.
B: Pertussis does not have specific immunoglobulin treatment; prevention relies on vaccination and antibiotics, as passive antibody administration is not standard practice in managing pertussis infections or exposure.
C: Tetanus management involves tetanus immunoglobulin only in certain cases, but it is not broadly categorized as specific immunoglobulin therapy like rabies immunoglobulin, which is routinely used post-exposure.
D: Rubella prevention depends primarily on vaccination; no specific immunoglobulin is routinely administered to provide passive immunity against rubella virus after exposure or infection.
A number of complications are associated with influenza. Which of the following is NOT one of these complications?
Rationale:
Nephritis is not a known complication associated with influenza. Influenza complications commonly involve respiratory and systemic inflammatory responses, such as pneumonitis, myocarditis, and encephalitis, which affect lungs, heart, and brain respectively. Nephritis, an inflammation of the kidneys, is unrelated to the typical pathophysiology and clinical progression of influenza infections, distinguishing it from recognized influenza complications.
B: Pneumonitis is a frequent influenza complication involving lung inflammation, leading to breathing difficulties and respiratory distress, directly linked to viral infection and secondary bacterial pneumonia.
C: Myocarditis involves inflammation of the heart muscle, a documented influenza complication due to viral spread and immune response, potentially causing cardiac dysfunction and arrhythmias.
D: Encephalitis, inflammation of the brain, occurs in some influenza cases, particularly in severe or complicated infections, resulting in neurological symptoms and potential long-term damage.
A client presents to the emergency department delirious and combative. The client becomes a danger to himself and to the staff caring for him. Which of the following actions is most appropriate?
Rationale:
Administer intramuscular sedative medication to the client.
Sedative medication rapidly decreases agitation and aggression, ensuring immediate safety for both the client and staff while allowing for further assessment. It is essential when verbal de-escalation fails, and physical restraint alone may not control dangerous behavior. Medication provides timely calming, preventing harm and stabilizing the client in an emergency setting.
A: Remove all objects and leave the client alone with security outside lacks direct intervention to control immediate violent behavior, risking further harm without calming or physical management.
B: Applying wrist restraints and checking every 15 minutes may not quickly control dangerous agitation and delays necessary medical calming intervention for immediate safety.
C: Recruiting nursing staff to hold the client can escalate agitation and injury risk, lacking the rapid calming effect provided by medication in critical situations.
Select the term which is most completely and accurately paired with its definition.
Rationale:
A physical restraint: A physical restraint is any mechanical device best matches its definition because it accurately identifies the nature of physical restraints as mechanical devices designed to limit movement. This description is clear, complete, and precise, avoiding ambiguity and emphasizing the mechanical aspect which is essential in understanding physical restraints in healthcare or safety contexts.
A: A physical restraint: A physical restraint is a manufactured device that is used lacks completeness and precision, as it does not specify what the device is for or its mechanical nature.
C: to prevent falls. focuses only on a specific use, neglecting the broader definition of physical restraints as mechanical devices, thus limiting accuracy.
D: A physical restraint: A physical restraint is any mechanical device stops abruptly without providing the full definition, leaving the explanation incomplete and vague.
To be successful claims must meet the following criteria:
Rationale:
Claims must be successful when disability is assessed using a percentage disability test similar to that used for assessing industrial injuries. This criterion ensures an objective, quantifiable measure of disability severity, aligning with established assessment protocols. It standardizes evaluation, facilitates fair determination of eligibility, and avoids subjective interpretation, which is vital for consistent application of the claims process.
A: Claims must be made on or before the disabled person's 21st birthday does not apply universally and lacks relevance to the disability assessment criteria required for success.
C: Immunisation at any age during an outbreak is not a determining factor for claim success, making this option unrelated to the core disability assessment requirements.
D: Identification of immunisations given by HM Armed Forces, while important administratively, does not define the success criteria for claims based on disability assessment.
What are the general nursing care guidelines that the nurse should follow when caring for clients in a health care facility?
Rationale:
Avoid jewelry with prongs or protruding stones. This guideline minimizes risk of injury to both the nurse and client, prevents accidental contamination, and maintains a sterile environment. Jewelry with sharp or protruding parts can harbor pathogens, compromise aseptic technique, and potentially puncture gloves, undermining infection control protocols within healthcare settings, thus ensuring safety and hygiene during nursing care.
A: Avoid physical contact with the infected client. This is impractical as nursing care often requires contact; instead, proper protective measures should be used rather than avoidance.
C: Isolate the client and keep the room door closed. Isolation depends on specific infections; it is not a general nursing guideline applicable to all clients in healthcare facilities.
D: Shake linens properly when changing the beds. Shaking linens spreads contaminants and pathogens, contradicting infection control measures; proper handling involves careful folding without shaking.
The nurse is caring for a patient who is susceptible to infection. Which instruction will the nurse include in an educational session to decrease the risk of infection?
Rationale:
Teaching the patient to select nutritious foods helps decrease the risk of infection. Proper nutrition strengthens the immune system, enabling the body to fight pathogens more effectively. Adequate intake of vitamins, minerals, and protein supports wound healing and enhances resistance to illnesses, making nutrition a critical component in infection prevention and overall health maintenance for susceptible patients.
A: Teaching the patient about fall prevention focuses on avoiding physical injuries, which does not directly influence infection control or immune system strength, making it unrelated to reducing infection risk.
B: Teaching the patient to take a temperature helps identify fever but does not actively prevent infection or enhance immune defenses, thus offering limited preventive benefit.
D: Teaching the patient about the effects of alcohol addresses lifestyle choices but does not specifically target immune support or infection reduction, lacking direct relevance to infection prevention.
Cholera vaccine should not be given to the following:
Rationale:
Cholera vaccine should not be given to anyone who is acutely unwell.
Administering the cholera vaccine to individuals currently experiencing acute illness may exacerbate their condition or interfere with the vaccine's effectiveness. Vaccination during active illness can also increase the risk of adverse reactions, making it essential to delay immunization until the person has recovered and is clinically stable.
A: Severely immunocompromised individuals can safely receive the vaccine under medical guidance; immunosuppression alone does not universally contraindicate cholera vaccination.
C: Pregnant and breast-feeding women are generally considered safe candidates for the cholera vaccine, avoiding unnecessary exclusion based on reproductive status.
D: HIV-positive individuals may receive the vaccine unless they are acutely ill or severely immunocompromised, so HIV status alone does not preclude vaccination.
Where should alcohol handrub be made available?
Rationale:
Alcohol handrub should be made available at the point of care.
This location ensures immediate access for healthcare workers to perform hand hygiene before and after patient contact, minimizing microbial transmission risks. It supports compliance by facilitating handrub use precisely where contamination is most likely, thus enhancing infection control effectiveness within clinical settings. Convenience and timing are crucial for optimal hand hygiene practices.
A: In the waiting room lacks direct patient interaction context, reducing urgency and relevance for immediate hand hygiene needs during clinical care.
B: In the bathrooms isolates hand hygiene from patient care areas, missing critical moments when healthcare workers must sanitize hands during treatment.
C: Placed at the washbasins delays access since handrub is designed for use without water, making it less efficient than point-of-care placement.
Indications for hand wash
Rationale:
Hand wash is indicated between direct contact with patients. This practice helps prevent cross-contamination by removing transient microorganisms acquired during patient interactions, thereby reducing healthcare-associated infections. Proper hand hygiene between patient contacts breaks the chain of infection transmission, ensuring safety for both patients and healthcare workers in various healthcare settings, especially in preventing the spread of pathogens.
A: Before invasive procedures primarily requires surgical hand antisepsis, not routine hand washing, which focuses on removing pathogens after patient contact, making it less specific for general hand hygiene indications.
B: In ICU patients relates to patient type rather than a hand hygiene timing; hand washing depends on exposure events, not patient location alone, so this choice lacks precision.
D: After leaving the isolation room targets environmental contamination but does not emphasize hand hygiene between patient contacts, which is critical for minimizing direct transmission of infections.
A Statistical Process Control Chart:
Rationale:
A Statistical Process Control Chart analyzes the data for deviations from the pooled mean of the samples. This chart monitors process variation over time, identifying trends or shifts by comparing sample data points against control limits derived from the overall average, enabling timely detection of unusual patterns that signal potential process issues or improvements in quality control.
B: Should be used only to display the data misunderstands the primary function; SPC charts not only show data but actively monitor process stability and detect variations beyond normal randomness.
C: Should be used only when a Pareto Chart is inconclusive misrepresents their complementary roles; Pareto charts identify problem frequency, while SPC charts track process variation over time independently.
D: Should be used when data is discrete limits the applicability incorrectly; SPC charts are versatile and applicable to both discrete and continuous data types, depending on the process characteristics.
Available pre-exposure hepatitis B immunisation schedules for high risk exposure in adults include
Rationale:
Available pre-exposure hepatitis B immunisation schedules for high risk exposure in adults include 0,7 days, 21 days and 12 months.
This schedule offers an accelerated immunisation timeline critical for rapid antibody development in high-risk adults, enhancing early protection. The initial doses at 0, 7, and 21 days rapidly stimulate the immune system, while the 12-month booster ensures long-term immunity, aligning with guidelines for urgent pre-exposure prophylaxis in adults exposed to hepatitis B risks.
A: 0,1 month, 2 months and 12 months This standard schedule is slower and less suitable for high-risk adults needing quick immunity, lacking the rapid initial dosing essential for timely protection.
C: 0,1 months 6 months and 12 months The extended interval delays early immune response, making it inadequate for urgent pre-exposure prophylaxis where immediate antibody production is critical.
D: 0,2 months 6 months and 12 months Delayed second dose at 2 months slows antibody generation, unsuitable for high-risk individuals requiring accelerated immunisation to quickly achieve protective immunity.
Patient Group Directions (PGDs):
Rationale:
Patient Group Directions (PGDs) are legally required to be reviewed at least every 2 years. This ensures that the PGD remains up-to-date with current clinical guidelines, safety information, and legal requirements, maintaining patient safety and effective medicine administration within the specified timeframe. Regular review prevents outdated practices and supports compliance with regulatory standards.
A: Can be used to administer an unlicensed vaccine contradicts regulations since PGDs only cover licensed medicines, ensuring safety and efficacy.
B: Should state that a Black Triangle medicine is being used is inaccurate because PGDs do not mandate explicit mention of the Black Triangle status.
C: Are verbal instructions for the supply or administration of medicines to a group of patients who may not be individually identified before presentation misrepresents PGDs, which are written documents specifying criteria and protocols.
A client who has had abdominal surgery develops an infection in the wound while still hospitalized. Which of the following agents is most likely the cause of the infection?
Rationale:
Bacteria are the most likely cause of a wound infection following abdominal surgery while still hospitalized. Bacterial pathogens commonly colonize surgical sites due to their ability to rapidly multiply in warm, moist environments. Hospitals have numerous bacterial species capable of causing such infections, including Staphylococcus aureus and Escherichia coli, which are frequent culprits in postoperative wound infections.
A: Virus Viruses typically cause systemic or respiratory infections rather than localized wound infections, as they require living host cells and do not colonize external wounds. Viral involvement in surgical site infections is rare.
C: Fungi Fungal infections usually develop in immunocompromised patients and have a slower onset; they are less common as immediate postoperative wound pathogens compared to bacteria.
D: Spores Spores represent a dormant bacterial form rather than a distinct infectious agent; they do not directly cause infections but can germinate into bacteria that then cause infection.
Which of the following are the factors that increase a patient's potential for acquiring a nosocomial infection?
Rationale:
All of the above increase a patient's potential for acquiring a nosocomial infection. Age affects immune system strength, nutritional status influences the body's ability to fight infections, and close proximity to other patients facilitates the spread of pathogens, collectively raising the risk of hospital-acquired infections.
A: Age impacts immune defenses, but alone does not encompass all risk factors contributing to nosocomial infections.
B: Nutritional status affects immunity, but it is not the sole determinant of infection risk in hospital settings.
C: Close proximity enables pathogen transmission but ignores other critical factors like immunity and nutrition.