Nursing Elites

1. The nurse discovers that an elderly client with no history of cardiac or renal disease has an elevated serum magnesium level. To further investigate the cause of this electrolyte imbalance, what information is most important for the nurse to obtain from the client's medical history?

• A. Frequency of laxative use for chronic constipation
• B. Dietary intake of magnesium-rich foods
• C. Use of magnesium-containing supplements
• D. History of alcohol use

Correct answer: A

Rationale: The correct answer is A. Frequent use of magnesium-containing laxatives can lead to hypermagnesemia, particularly in elderly clients. Option B, dietary intake of magnesium-rich foods, may contribute to elevated serum magnesium levels but is less likely the cause in this scenario. Option C, the use of magnesium-containing supplements, can also contribute to hypermagnesemia but is not as common in elderly clients without a history of using such supplements. Option D, history of alcohol use, is less relevant to the development of elevated serum magnesium levels compared to laxative use for chronic constipation.

2. The nurse is preparing a community education program on osteoporosis. Which instruction is helpful in preventing bone loss and promoting bone formation?

• A. Recommend weight-bearing physical activity.
• B. Encourage a diet high in dairy products.
• C. Suggest vitamin D supplementation.
• D. Advise avoiding caffeine and alcohol.

Correct answer: A

Rationale: The correct answer is A: Recommend weight-bearing physical activity. Weight-bearing exercises are effective in maintaining bone density and preventing osteoporosis by promoting bone formation. Encouraging a diet high in dairy products (choice B) can provide calcium, but it's not as directly related to bone formation as physical activity. While vitamin D supplementation (choice C) is important for calcium absorption and bone health, it is not directly involved in promoting bone formation. Advising to avoid caffeine and alcohol (choice D) can be beneficial for bone health, but it is not as directly related to promoting bone formation as weight-bearing physical activity.

3. A client with severe COPD is receiving oxygen therapy at 2 liters per minute via nasal cannula. The client's oxygen saturation level drops to 88% during ambulation. What action should the nurse take first?

• A. Increase the oxygen flow rate to 4 liters per minute.
• B. Instruct the client to rest until the oxygen saturation improves.
• C. Discontinue ambulation and return the client to bed.
• D. Encourage the client to breathe more deeply.

Correct answer: C

Rationale: In this scenario, the client's oxygen saturation level dropping during ambulation indicates an inadequate oxygen supply. The first action the nurse should take is to discontinue ambulation and return the client to bed. This helps stabilize the oxygen level by reducing the oxygen demand placed on the client during physical activity. Increasing the oxygen flow rate without addressing the underlying issue of oxygen saturation dropping may not be effective. Instructing the client to rest is not enough to address the immediate need for stabilization of oxygen levels. Encouraging the client to breathe more deeply may not be sufficient to overcome the oxygen saturation drop caused by inadequate oxygen supply during ambulation.

4. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should the nurse report to the healthcare provider immediately?

• A. Serum potassium of 5.5 mEq/L
• B. Serum calcium of 8 mg/dL
• C. Serum creatinine of 2.0 mg/dL
• D. White blood cell count of 10,000/mm³

Correct answer: A

Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with ESRD scheduled for hemodialysis as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to serious cardiac arrhythmias, especially during hemodialysis. Serum calcium, serum creatinine, and white blood cell count, while important, do not pose immediate life-threatening risks like hyperkalemia.

5. A client with a head injury is receiving mechanical ventilation. Which finding indicates to the nurse that the client may be experiencing increased intracranial pressure (ICP)?

• A. Widening pulse pressure
• B. Sudden drop in heart rate
• C. A decrease in urine output
• D. Elevated blood pressure and widening pulse pressure

Correct answer: D

Rationale: In a client with increased intracranial pressure (ICP), the body's compensatory mechanisms lead to an elevation in blood pressure and a widening pulse pressure. This occurs due to the body's attempt to maintain cerebral perfusion. Therefore, elevated blood pressure and widening pulse pressure are classic signs of increased ICP and necessitate immediate attention. Choices A, B, and C are incorrect because a widening pulse pressure, sudden drop in heart rate, or decreased urine output are not specific indicators of increased ICP.

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