RN HESI Exit Exam

Correct Answer: A

Rationale: A serum potassium level of 6.5 mEq/L is most concerning in a client with CKD as it indicates severe hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias. Serum sodium levels within the normal range (135 mEq/L) are not immediately concerning. Serum creatinine of 2.0 mg/dL may indicate impaired kidney function but does not require immediate intervention for hyperkalemia. Blood glucose of 150 mg/dL is within normal limits and does not directly correlate with hyperkalemia in this scenario.

Correct Answer: A

Rationale: The ABG results indicate respiratory acidosis due to an elevated PaCO2 (49 mm/Hg), indicating hypoventilation. The appropriate intervention for respiratory acidosis is to improve ventilation. Coughing and deep breathing protocols can help the client to effectively ventilate and improve gas exchange. Administering oxygen via nasal cannula (Choice B) may be necessary in respiratory distress situations, but addressing the underlying cause of hypoventilation is crucial. Intubation and mechanical ventilation (Choice C) are not the first-line interventions for uncomplicated respiratory acidosis. Increasing IV fluids (Choice D) does not directly address the respiratory acidosis present in this scenario.

Correct Answer: C

Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.

Correct Answer: A

Rationale: A warm shower can help reduce morning stiffness, making the procedure more comfortable for the client. This intervention promotes comfort and mobility, addressing the immediate issue of stiffness. Providing a warm blanket (choice B) may offer some comfort but will not address the stiffness as effectively as a warm shower. Delaying the procedure (choice C) may inconvenience the client and not address the underlying stiffness issue. Encouraging range-of-motion exercises (choice D) is important for long-term management but may not provide immediate relief from the stiffness that is hindering the procedure.

Correct Answer: A

Rationale: The correct answer is A: Elevated blood pressure. In a client with chronic kidney disease (CKD) receiving erythropoietin therapy, elevated blood pressure requires immediate intervention. This finding is concerning as it may indicate worsening hypertension, which can lead to further complications. Increased fatigue (choice B) is common in CKD but may not require immediate intervention unless severe. Headache (choice C) can be a symptom to monitor but does not pose an immediate threat like elevated blood pressure. Elevated hemoglobin (choice D) is actually a desired outcome of erythropoietin therapy and does not require immediate intervention.