Which of the following is the most reliable early indicator of infection in a client with low WBC?
Fever
Chills
Tachycardia
Dyspnea
The Correct Answer is A
Choice A rationale:
Fever is the most reliable early indicator of infection in a client with low WBC because it is a direct physiologic response to the presence of pathogens. When the body detects an infection, it releases pyrogens, which act on the hypothalamus to raise the body's temperature. This elevated temperature helps to create an environment that is less hospitable to bacteria and viruses, and it also stimulates the immune system to fight the infection.
In clients with low WBC, the immune system is already compromised, so the fever response may be even more pronounced. It's important to note that even a slight elevation in temperature (as low as 100.4°F or 38°C) can be significant in these clients.
Choice B rationale:
Chills can also be a sign of infection, but they are not as specific as fever. Chills can occur for other reasons, such as exposure to cold or anxiety.
Choice C rationale:
Tachycardia, or increased heart rate, can also be a sign of infection, but it is not as reliable as fever. Tachycardia can occur for other reasons, such as dehydration, pain, or anxiety.
Choice D rationale:
Dyspnea, or shortness of breath, is not a typical early sign of infection. It is more likely to occur in later stages of infection, when the infection has spread to the lungs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Flu-like symptoms: These are common during the early stages of HIV infection, often within 2-4 weeks after exposure to the virus. They are a result of the body's immune system responding to the virus. Symptoms can include:
Fever Fatigue
Muscle aches
Headache Sore throat
Rash
Swollen lymph nodes
Night sweats: These are also common in early HIV infection and can be caused by the body's attempts to fight off the virus or by inflammation. They can also be a side effect of some HIV medications.
Choice B rationale:
Kaposi's sarcoma (KS): This is a type of cancer that is associated with HIV infection. It is caused by a virus called Kaposi's sarcoma-associated herpesvirus (KSHV). KS often appears as purple or red lesions on the skin or in the mouth. It can also affect other organs, such as the lungs and lymph nodes. However, it's not a common initial symptom of HIV infection. It usually develops in later stages of HIV when the immune system is severely weakened.
Choice C rationale:
Fungal and bacterial infections: People with HIV are more susceptible to infections because the virus weakens their immune system. However, fungal and bacterial infections are not typically among the initial symptoms of HIV infection. They usually occur in later stages of the disease when the immune system is more compromised.
Choice D rationale:
Pneumocystis lung infection (PCP): This is a serious lung infection that is caused by a fungus called Pneumocystis jirovecii. It is a common opportunistic infection in people with HIV, but it is not typically an initial symptom. It usually develops in later stages of HIV when the CD4 count (a measure of immune system health) is very low.
Correct Answer is A
Explanation
The correct answer is A. Exercise.
Choice A: Exercise Exercise is generally beneficial for overall health and is not typically a factor that exacerbates systemic lupus erythematosus (SLE). In fact, regular physical activity can be an important part of the overall treatment plan for individuals with SLE. It can boost energy levels, improve joint flexibility, and help alleviate stress. Therefore, if a patient with SLE identifies exercise as a factor that can exacerbate their condition, it indicates a need for further teaching.
Choice B: Diet Certain diets can potentially trigger or worsen SLE symptoms. For instance, a chemical found in alfalfa may trigger lupus symptoms, so patients may want to avoid eating alfalfa sprouts or taking supplements with alfalfa. Therefore, diet is a correct factor that can exacerbate SLE.
Choice C: Sunlight Exposure to sunlight can trigger or worsen SLE symptoms. For those with lupus, being in the sun can lead to symptoms like skin rashes, itching, burning, joint pain, weakness, and fatigue. In certain cases, it can also result in damage to internal organs. Therefore, sunlight is a correct factor that can exacerbate SLE.
Choice D: Infection Infections can trigger or worsen SLE symptoms. Rates of infections are higher among persons with SLE compared with the general population. Therefore, infection is a correct factor that can exacerbate SLE.
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