Nursing Elites

1. A client with acute kidney injury (AKI) weighing 50kg and having a potassium level of 6.7mEq/L (6.7mmol/L) is admitted to the hospital. Which prescribed medication should the nurse administer first?

• A. Calcium acetate, one tablet by mouth
• B. Sodium polystyrene sulfonate, 15 grams by mouth
• C. Epoetin Alfa, recombinant, 2,500 units subcutaneously
• D. Sevelamer, one tablet by mouth

Correct answer: B

Rationale: In a client with acute kidney injury (AKI) and hyperkalemia, the priority intervention is to lower the potassium level swiftly. Sodium polystyrene sulfonate is a medication used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, reducing the overall potassium levels. Calcium acetate, epoetin alfa, and sevelamer are not indicated for the immediate reduction of potassium levels in hyperkalemia. Calcium acetate is used to control phosphate levels, epoetin alfa is a medication to treat anemia by stimulating red blood cell production, and sevelamer is a phosphate binder used in chronic kidney disease to reduce phosphate levels.

2. In a patient with asthma, which of the following is a primary goal of treatment?

• A. Improving oxygenation.
• B. Reducing inflammation.
• C. Improving airflow.
• D. Reducing airway constriction.

Correct answer: C

Rationale: The primary goal in the treatment of asthma is to improve airflow. Asthma is characterized by airway inflammation, constriction, and increased mucus production, leading to airflow limitation. Improving airflow helps ensure adequate oxygenation and reduces symptoms. While reducing inflammation and airway constriction are important aspects of asthma management, the primary goal is to optimize airflow to improve respiratory function and quality of life.

3. A nurse cares for a client with diabetes mellitus who is prescribed metformin (Glucophage) and is scheduled for an intravenous urography. Which action should the nurse take first?

• A. Contact the provider and recommend discontinuing the metformin.
• B. Keep the client NPO for at least 6 hours prior to the examination.
• C. Check the client’s capillary artery blood glucose and administer prescribed insulin.
• D. Administer intravenous fluids to dilute and increase the excretion of dye.

Correct answer: A

Rationale: Metformin can cause lactic acidosis and renal impairment as the result of an interaction with the dye. This drug must be discontinued for 48 hours before the procedure and not started again after the procedure until urine output is well established. The client’s health care provider needs to provide alternative therapy for the client until the metformin can be resumed. Keeping the client NPO, checking the client’s blood glucose, and administering intravenous fluids should be part of the client’s plan of care, but are not the priority, as the examination should not occur while the client is still taking metformin.

4. Why is the combination drug trimethoprim-sulfamethoxazole (TMP-SMX) necessary?

• A. To broaden the antibacterial spectrum.
• B. To decrease bacterial resistance.
• C. To improve the taste.
• D. To minimize toxic effects.

Correct answer: B

Rationale: The correct answer is B: To decrease bacterial resistance. Trimethoprim-sulfamethoxazole (TMP-SMX) is a combination drug used to prevent bacterial resistance to sulfonamides. It works by targeting different steps in the bacterial metabolic pathway, making it harder for bacteria to develop resistance. Choice A is incorrect because the combination does not broaden the antibacterial spectrum; instead, it enhances effectiveness against specific bacteria. Choice C is incorrect as taste improvement is not the primary reason for combining these drugs. Choice D is incorrect because while combination therapy can sometimes help minimize toxic effects, the primary purpose in this case is to address bacterial resistance.

5. A male client with chronic kidney disease (CKD) is refusing to take his medication and has missed two hemodialysis appointments. What is the best initial action for the nurse?

• A. Discuss what the treatment regimen means to him.
• B. Refer the client to a mental health nurse practitioner.
• C. Reschedule the appointments to another date and time.
• D. Discuss the option of peritoneal dialysis.

Correct answer: A

Rationale: The best initial action for the nurse in this scenario is to have a discussion with the client about what the treatment regimen means to him. It is important to assess the client's anxiety, coping styles, and acceptance of the required treatment for CKD. The client may be in denial of the diagnosis or may have concerns that need to be addressed. While rescheduling hemodialysis appointments could be helpful, referring the client to a mental health nurse practitioner or discussing peritoneal dialysis are not the most appropriate first steps. Understanding the client's perspective and concerns is crucial before exploring other interventions.

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