A nurse is assessing a client's vital signs. The oxygen saturation is 85%. What intervention should the nurse perform first?

Choice A reason: Client will remain free from falls throughout their hospital stay is the most appropriate goal for an elderly client with a nursing diagnosis of risk for injury after hip surgery, because it is specific, measurable, attainable, realistic, and timely. This goal addresses the main risk factor for injury, which is falling, and the main outcome indicator, which is the absence of falls. This goal also reflects the client's condition, needs, and preferences, and is consistent with the standards of care and evidencebased practice.

Choice B reason: Client will increase activity tolerance by discharge from the hospital is not the most appropriate goal for an elderly client with a nursing diagnosis of risk for injury after hip surgery, because it is vague, subjective, unachievable, unrealistic, and untimely. This goal does not address the main risk factor for injury, which is falling, nor the main outcome indicator, which is the absence of falls. This goal also does not reflect the client's condition, needs, and preferences, and is not consistent with the standards of care and evidencebased practice.

Choice C reason: Client will demonstrate effective breathing pattern when ambulating throughout hospital stay is not the most appropriate goal for an elderly client with a nursing diagnosis of risk for injury after hip surgery, because it is irrelevant, unrelated, unnecessary, unrealistic, and untimely. This goal does not address the main risk factor for injury, which is falling, nor the main outcome indicator, which is the absence of falls. This goal also does not reflect the client's condition, needs, and preferences, and is not consistent with the standards of care and evidencebased practice.

Choice D reason: Client will increase mobility by the time of discharge from hospital is not the most appropriate goal for an elderly client with a nursing diagnosis of risk for injury after hip surgery, because it is vague, subjective, unachievable, unrealistic, and untimely. This goal does not address the main risk factor for injury, which is falling, nor the main outcome indicator, which is the absence of falls. This goal also does not reflect the client's condition, needs, and preferences, and is not consistent with the standards of care and evidencebased practice.

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.