Electrolytes Question #19


The nurse is caring for a client in renal failure. Which teaching should the nurse provide to help this client control phosphorus levels?


  1. Increase intake of dairy products and nuts
    • Rationale:
  2. Take an aluminum-based antacid with or after meals
    • Rationale:
  3. Reduce intake of chocolate, meats, and whole grains
    • Rationale:
  4. Avoid calcium supplements
    • Rationale:



The correct answer is B. Aluminum-based antacids are often prescribed in the treatment of renal failure to bind with phosphate and increase elimination through the gastrointestinal tract. Dairy products and nuts are high in phosphorus. Chocolate, meats, and whole grains are foods high in magnesium. Clients with renal failure often require calcium supplements as a result of poor vitamin D metabolism and to prevent hyperphosphatemia.

NCLEX TIP: Using critical thinking is recommended when reading priority questions. Recognizing key words in the answer choices will allow you to know how to choose the correct answer for the question. Go through each answer choice and decide is it: Maslow’s hierarchy, safety-related, or following the nursing process (ADPIE). Never complete a nursing action that is outside the scope of practice.

Learning Outcomes

Test Taking Tip

Video Rationale