What is an example of a client's primary defense to infection?
Inflammation
Fever
Phagocytosis
Intact skin
The Correct Answer is D
Choice A reason: Inflammation is not an example of a client's primary defense to infection. Inflammation is a secondary defense to infection, which is activated after the primary defense has been breached. Inflammation is a complex process that involves the release of chemical mediators, the dilation of blood vessels, the increase of blood flow, the migration of white blood cells, and the formation of exudate. Inflammation aims to contain, neutralize, and eliminate the infectious agent and to repair the damaged tissue.
Choice B reason: Fever is not an example of a client's primary defense to infection. Fever is a secondary defense to infection, which is activated after the primary defense has been breached. Fever is an elevation of the body temperature above the normal range, which is usually 36.5 to 37.5 degrees Celsius or 97.7 to 99.5 degrees Fahrenheit. Fever is a systemic response to infection that is regulated by the hypothalamus, which is the part of the brain that controls the body's thermostat. Fever enhances the immune system's activity and inhibits the growth of some pathogens.
Choice C reason: Phagocytosis is not an example of a client's primary defense to infection. Phagocytosis is a secondary defense to infection, which is activated after the primary defense has been breached. Phagocytosis is a process that involves the engulfment and destruction of foreign particles, such as bacteria, by specialized cells, such as macrophages and neutrophils. Phagocytosis is a type of cellular immunity that eliminates the infectious agent and prevents its spread.
Choice D reason: Intact skin is an example of a client's primary defense to infection. Intact skin is the first and most important line of defense against infection, as it forms a physical barrier that prevents the entry of pathogens into the body. Intact skin also has chemical and biological properties that resist infection, such as the acidic pH, the secretion of sebum and sweat, and the presence of normal flora. Intact skin protects the underlying tissues and organs from infection and injury.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: A client with leukemia is a susceptible host most at risk for infection. Leukemia is a type of cancer that affects the blood cells, especially the white blood cells, which are responsible for fighting infections. Leukemia causes the production of abnormal and immature white blood cells that cannot function properly and crowd out the normal ones. This leads to a condition called leukopenia, which is a low level of white blood cells. Leukopenia makes the client more vulnerable to infection by reducing the immune system's ability to defend against pathogens.
Choice B reason: A child who is immunized is not a susceptible host most at risk for infection. Immunization is a process that stimulates the immune system to produce antibodies against a specific disease. Immunization protects the child from getting infected by the disease or reduces the severity of the infection if it occurs. Immunization also prevents the spread of the disease to other people who are not immunized or who are immunocompromised.
Choice C reason: A 60yearold client is not a susceptible host most at risk for infection. Age is a factor that may influence the susceptibility to infection, but it is not the most important one. Older adults may have a weaker immune system due to aging, chronic diseases, or medications, but they may also have a stronger immune memory due to previous exposure to pathogens. The risk of infection in older adults depends on their overall health status, lifestyle, and preventive measures.
Choice D reason: A hospitalized 35yearold client is not a susceptible host most at risk for infection. Hospitalization is a factor that may increase the exposure to infection, but it is not the most significant one. Hospitalized clients may encounter various sources of infection, such as health care workers, other clients, medical equipment, or invasive procedures, but they may also receive adequate infection control measures, such as hand hygiene, isolation, sterilization, or prophylaxis. The risk of infection in hospitalized clients depends on their diagnosis, treatment, and compliance.
Correct Answer is D
Explanation
Choice A reason: Use gentle brushing and flossing techniques for clients with fragile mucosa is an important nursing intervention, but it is not the priority. Gentle brushing and flossing can help prevent plaque, gingivitis, and infection in the oral cavity, especially for clients with fragile mucosa due to dehydration, medication, or radiation. However, this intervention is not as urgent as having a suction apparatus ready at the bedside.
Choice B reason: Handle dentures with care is an important nursing intervention, but it is not the priority. Handling dentures with care can prevent damage, loss, or misplacement of the dentures, which can affect the client's comfort, appearance, and nutrition. However, this intervention is not as urgent as having a suction apparatus ready at the bedside.
Choice C reason: Position the client on one side with the head turned towards you is an important nursing intervention, but it is not the priority. Positioning the client on one side with the head turned towards you can facilitate the access and visibility of the oral cavity, as well as prevent the aspiration of saliva, blood, or debris. However, this intervention is not as effective as having a suction apparatus ready at the bedside.
Choice D reason: Have a suction apparatus ready at the bedside is the priority nursing intervention, because it can prevent the aspiration of saliva, blood, or debris, which can cause choking, pneumonia, or respiratory distress. Having a suction apparatus ready at the bedside can allow the nurse to quickly and safely remove any secretions or foreign materials from the oral cavity or the airway of the unconscious client.
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