Correct Answer: B

Rationale: In a client with chronic kidney disease, elevated serum potassium levels (hyperkalemia) are the most concerning finding. Hyperkalemia can lead to life-threatening cardiac dysrhythmias. Monitoring and managing serum potassium levels are crucial in patients with kidney disease to prevent severe complications. While elevated creatinine (Choice A) and BUN (Choice C) are indicative of impaired kidney function, hyperkalemia poses a more immediate threat to the client's health. Hemoglobin levels (Choice D) can be affected by chronic kidney disease but are not as acutely dangerous as severe hyperkalemia.

Correct Answer: A

Rationale: The nurse should prioritize seeing the client who has new onset dyspnea 24 hours after a total hip arthroplasty first. This sudden dyspnea could indicate a serious complication like a pulmonary embolism, which requires immediate assessment and intervention. Acute abdominal pain, a UTI with a low-grade fever, and pneumonia with an oxygen saturation of 96% are important concerns but are not as immediately life-threatening as potential pulmonary embolism indicated by sudden dyspnea postoperatively.

Correct Answer: B

Rationale: Late decelerations are concerning as they indicate uteroplacental insufficiency, potentially resulting in fetal hypoxia. Immediate intervention is necessary to address the underlying cause and ensure fetal well-being. Early decelerations are typically benign and associated with head compression during contractions. Accelerations are reassuring and indicate fetal well-being. Moderate variability is a normal finding and indicates a healthy autonomic nervous system response. Therefore, late decelerations (Choice B) require immediate attention, while the other patterns are generally considered normal or benign during labor.

Correct Answer: D

Rationale: Elevated temperature is the correct finding to report immediately in a client with a history of peptic ulcer disease and abdominal pain. This could indicate a perforation or worsening of the condition, requiring prompt medical attention. Positive bowel sounds (Choice A) are a normal finding and not a cause for concern. Rebound tenderness (Choice B) is concerning but does not require immediate attention compared to an elevated temperature. Increased appetite (Choice C) is not a red flag symptom for peptic ulcer disease and can be considered a positive sign, not requiring immediate attention.

Correct Answer: A

Rationale: The correct instruction is to use tracheostomy covers when outdoors. Tracheostomy covers serve to protect the airway from environmental contaminants, reducing the risk of infection. Choice B is incorrect because hydrogen peroxide can be irritating to the skin and is not recommended for cleaning the tracheostomy site. Choice C is incorrect as tracheostomy tubes should not be routinely changed weekly unless there is a specific medical indication. Changing it without a need can introduce infection or damage the stoma. Choice D is incorrect as applying ointment around the tracheostomy site can lead to occlusion of the stoma and interfere with breathing.