Correct Answer: A

Rationale: Administering 50% dextrose IV push is the first priority in treating a blood glucose level of 600 mg/dl in a client who is unresponsive due to hyperglycemia. This intervention is crucial to rapidly raise the client's blood glucose levels and address the emergency situation. Administering insulin (Choice B) would further lower the blood glucose level, worsening the client's condition. Monitoring urine output (Choice C) and obtaining a blood glucose level (Choice D) are important assessments but are secondary to the immediate need to address the high blood glucose levels causing the client's unresponsiveness.

Correct Answer: C

Rationale: The correct answer is C. The use of accessory muscles indicates increased work of breathing and can signal respiratory failure in a client with COPD. This finding requires immediate intervention to prevent further respiratory compromise. Oxygen saturation of 90% indicates some oxygenation impairment but may not necessitate immediate intervention. A respiratory rate of 24 breaths per minute is slightly elevated but does not indicate immediate respiratory distress. Inspiratory crackles may be present in pneumonia but do not require immediate intervention compared to the increased work of breathing indicated by the use of accessory muscles.

Correct Answer: B

Rationale: The correct instruction for the nurse to include in the medication teaching plan for a client receiving enalapril, an ACE inhibitor, is to 'Report increased bruising or bleeding.' ACE inhibitors can cause thrombocytopenia, which can lead to an increased risk of bruising and bleeding. Monitoring and reporting these symptoms promptly are essential to prevent complications. Choices A, C, and D are incorrect because increasing potassium-rich foods, stopping medication if a cough develops, and limiting intake of leafy green vegetables are not directly related to the common side effects or actions of ACE inhibitors.

Correct Answer: C

Rationale: Decreased urine output is concerning in a client with acute pancreatitis as it may indicate hypovolemia or renal impairment. In acute pancreatitis, decreased urine output can signify inadequate perfusion to the kidneys, leading to renal failure. While the other options are important to monitor in a client with acute pancreatitis, decreased urine output requires immediate attention to prevent further complications.

Correct Answer: A

Rationale: The correct answer is A: Serum potassium level. When a client with chronic kidney disease is receiving erythropoietin therapy, monitoring serum potassium levels is crucial due to the risk of developing hyperkalemia. Erythropoietin can stimulate red blood cell production, leading to an increase in potassium levels. Monitoring potassium helps prevent complications associated with hyperkalemia, such as cardiac arrhythmias. Choices B, C, and D are incorrect because while hemoglobin levels are relevant in assessing the effectiveness of erythropoietin therapy, monitoring potassium levels is more critical in this scenario.