a nurse is assessing clients for fluid and electrolyte imbalances which client should the nurse assess first for potential hyponatremia
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Nursing Elites

ATI RN

ATI Fluid Electrolyte and Acid-Base Regulation

1. A nurse is assessing clients for fluid and electrolyte imbalances. Which client should the nurse assess first for potential hyponatremia?

Correct answer: A

Rationale: The correct answer is the 34-year-old on NPO status receiving intravenous D5W because D5W is a hypotonic solution that can dilute the blood's sodium levels, leading to hyponatremia. Patients on NPO status rely solely on intravenous fluids for hydration, making them more susceptible to electrolyte imbalances. Choices B, C, and D are less likely to cause hyponatremia. Choice B, the 50-year-old with an infection on a sulfonamide antibiotic, is at risk for allergic reactions or renal issues. Choice C, the 67-year-old taking ibuprofen, is at risk for gastrointestinal bleeding or kidney problems. Choice D, the 73-year-old on digoxin with tachycardia, is more likely to experience digoxin toxicity, affecting the heart's rhythm.

2. A nurse is assessing clients who have intravenous therapy prescribed. Which assessment finding for a client with a peripherally inserted central catheter (PICC) requires immediate attention?

Correct answer: D

Rationale:

3. You are an emergency-room nurse caring for a trauma patient. Your patient has the following arterial blood gas results: pH 7.26, PaCO2 28, HCO3 11 mEq/L. How would you interpret these results?

Correct answer: D

Rationale:

4. A nurse admitting a patient with a history of emphysema reviews her past lab reports and notes that the patient's PaCO2 has been 56 to 64 mmHg. The nurse will be cautious administering oxygen because:

Correct answer: D

Rationale: When PaCO2 chronically exceeds 50 mm Hg, it creates insensitivity to CO2 in the respiratory medulla, and the use of oxygen may result in the patient developing carbon dioxide narcosis and hypoxemia. Choice A is incorrect because administering oxygen does not lead to a dramatic rise in calcium due to pituitary stimulation. Choice B is incorrect because administering oxygen does not directly increase intracranial pressure or create confusion. Choice C is incorrect because administering oxygen to a patient with emphysema and high PaCO2 levels is more likely to cause respiratory depression than hyperventilation and acidosis.

5. You are the nurse evaluating a newly admitted patients laboratory results, which include several values that are outside of reference ranges. Which of the following would cause the release of antidiuretic hormone (ADH)?

Correct answer: A

Rationale:

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