Correct Answer: A

Rationale: The correct answer is A: White blood cell count (WBC). Monitoring the white blood cell count is crucial when caring for a patient with an infection as it helps assess the body's response to the infection. An elevated white blood cell count often indicates an active infection or inflammation, while a decreasing count may signal improvement or potential complications. C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) are nonspecific markers of inflammation and not as specific to monitoring infection progression as the white blood cell count. Hemoglobin and hematocrit levels are important for assessing oxygen-carrying capacity and blood volume, but they are not the primary indicators for monitoring infection.

Correct Answer: B

Rationale: The most effective intervention in managing a patient with chronic pain is teaching the patient relaxation techniques. Relaxation techniques can help reduce stress, decrease muscle tension, and improve pain management in patients with chronic pain. Administering opioids as prescribed may have risks of dependence and side effects, making it less favorable as a first-line intervention. Encouraging range of motion exercises can be beneficial, but relaxation techniques directly target stress reduction, a common exacerbating factor in chronic pain. Recommending complete bed rest is generally discouraged in chronic pain management as it can lead to deconditioning and worsen pain over time.

Correct Answer: B

Rationale: The correct answer is to contact the physical therapy team. When a client who had a stroke presents with left-side weakness, the nurse should prioritize coordinating with the physical therapy team rather than immediately initiating physical therapy. The initial step should involve assessing the client's condition and involving the appropriate healthcare team for a comprehensive care plan. Administering pain medication or starting treatment without consulting others can delay or hinder the appropriate care needed for the client's recovery.

Correct Answer: B

Rationale: During a fire emergency, it is crucial to close all doors to contain smoke and fire, helping to protect the patients. This action can prevent the spread of fire and smoke to the area where patients are located. Identifying evacuation routes is also important for a timely and orderly evacuation if necessary. Waiting for the fire department to arrive before taking action (Choice A) can waste valuable time and put patients at risk. Moving bedridden patients in their beds (Choice D) can be dangerous during a fire and should be avoided as it can expose patients and staff to more risks.

Correct Answer: A

Rationale: Using sterile gloves during catheter insertion is crucial to prevent infection. Sterile gloves help maintain asepsis during the procedure, reducing the risk of introducing microorganisms into the urinary tract. Cleaning the insertion site with alcohol, as mentioned in choice B, is important but not as critical as using sterile gloves. Choice C, inserting the catheter as quickly as possible, is not recommended as it can lead to errors and increase the risk of contamination. Choice D, using a smaller catheter size to minimize trauma, is not directly related to preventing infection but rather focuses on patient comfort and reducing tissue damage.