The nurse is admitting a patient who was diagnosed with acute renal failure. Which electrolyte should the nurse expect to be most affected with this disorder?

Phosphorous.

Magnesium.

Potassium.

Calcium.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

While acute renal failure can affect phosphorus levels, potassium is the electrolyte most commonly affected in this condition. Kidneys play a crucial role in regulating potassium levels in the body, and when they fail, potassium levels can become dangerously elevated.

Choice B rationale:

Acute renal failure can lead to alterations in magnesium levels, but potassium is typically more affected. Magnesium imbalances may occur but are not the primary concern in this condition.

Choice C rationale:

As mentioned earlier, potassium imbalances are common in acute renal failure. The nurse should closely monitor the patient's potassium levels and be prepared to intervene if they become too high or too low.

Choice D rationale:

Calcium levels may also be affected in acute renal failure, but potassium remains the most critical electrolyte to monitor in this condition.

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Correct Answer is B

Explanation

Choice A rationale:

A phosphorus level of 4.5 mEq/L falls within the normal range, which is typically between 2.5 to 4.5 mEq/L. Although it's essential to monitor phosphorus levels, it is not the priority finding in this scenario.

Choice B rationale:

A potassium level of 2.9 mEq/L is the priority finding. The normal range for potassium is typically between 3.5 to 5.0 mEq/L. A potassium level of 2.9 mEq/L indicates severe hypokalemia, which can lead to life-threatening cardiac arrhythmias and muscle weakness. Immediate intervention is necessary to address the potassium imbalance.

Choice C rationale:

A calcium level of 8.2 mg/dL falls within the normal range (typically 8.5 to 10.2 mg/dL). While calcium levels are essential to monitor, they do not take precedence over the critically low potassium level in this situation.

Choice D rationale:

A sodium level of 145 mEq/L falls within the normal range, which is usually around 135 to 145 mEq/L. Although monitoring sodium levels is important, it is not the priority finding when compared to the critically low potassium level.

A. Request a dietitian consult for selecting foods high in phosphorous. B. Provide aluminum hydroxide antacids as prescribed. C. Instruct the patient to avoid poultry, peanuts, and seeds. D. Instruct the patient to avoid the intake of sodium phosphate.

Correct Answer is A

Explanation

Choice A rationale:

Hypophosphatemia is a condition characterized by low levels of phosphate in the blood, which can be caused by various factors, including malnutrition. In this case, the patient has a history of stomach ulcers, which might have contributed to poor nutrient absorption. The nurse should request a dietitian consult to ensure the patient receives an appropriate diet rich in phosphorus, which is essential for cellular function, bone health, and energy metabolism.

Choice B rationale:

Providing aluminum hydroxide antacids as prescribed is not the appropriate intervention for hypophosphatemia. Aluminum hydroxide antacids can bind to phosphate in the gastrointestinal tract, reducing its absorption and potentially worsening the patient's already low phosphate levels.

Choice C rationale:

Instructing the patient to avoid poultry, peanuts, and seeds is not suitable for this situation. These foods are good sources of phosphorus, and avoiding them would further deplete the patient's already low phosphate levels.

Choice D rationale:

Instructing the patient to avoid the intake of sodium phosphate is not necessary for hypophosphatemia. While sodium phosphate preparations are used as laxatives, there is no indication that the patient is taking them, and they are not relevant to the management of hypophosphatemia.

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The nurse is admitting a patient who was diagnosed with acute renal failure. Which electrolyte should the nurse expect to be most affected with this disorder?

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