ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse is assessing a client who has acute pancreatitis and is at risk for an acid-base imbalance. For which manifestation of this acid-base imbalance should the nurse assess?
- A. Agitation
 - B. Kussmaul respirations
 - C. Seizures
 - D. Positive Chvosteks sign
 
Correct answer: B
Rationale:
2. When planning the care of a patient with a fluid imbalance, the nurse understands that in the human body, water and electrolytes move from the arterial capillary bed to the interstitial fluid. What causes this to occur?
- A. Active transport of hydrogen ions across the capillary walls
 - B. Pressure of the blood in the renal capillaries
 - C. Action of the dissolved particles contained in a unit of blood
 - D. Hydrostatic pressure resulting from the pumping action of the heart
 
Correct answer: D
Rationale:
3. While assessing clients on a medical-surgical unit, which client is at risk for hypokalemia?
- A. Client with pancreatitis who has continuous nasogastric suctioning
 - B. Client who is prescribed an angiotensin-converting enzyme (ACE) inhibitor
 - C. Client in a motor vehicle crash who is receiving 6 units of packed red blood cells
 - D. Client with uncontrolled diabetes and a serum pH level of 7.33
 
Correct answer: A
Rationale: Continuous nasogastric suctioning can lead to hypokalemia due to the loss of gastric contents rich in potassium. Therefore, a client with pancreatitis who has continuous nasogastric suctioning is at risk for hypokalemia. Option B is incorrect because ACE inhibitors may lead to hyperkalemia, not hypokalemia. Option C is incorrect as receiving packed red blood cells can lead to hyperkalemia due to the potassium content in the blood product. Option D is incorrect because a serum pH level of 7.33 indicates acidosis, which is not directly associated with hypokalemia.
4. You are making initial shift assessments on your patients. While assessing one patients peripheral IV site, you note edema around the insertion site. How should you document this complication related to IV therapy?
- A. Air emboli
 - B. Phlebitis
 - C. Infiltration
 - D. Fluid overload
 
Correct answer: C
Rationale:
5. During a visit to an 84-year-old woman recovering from hip surgery, the nurse notices signs of confusion and poor skin turgor. The woman mentions she limits water intake to avoid nighttime bathroom trips. The nurse should explain to the woman that:
- A. She will need her medications adjusted and be readmitted for a complete workup.
 - B. Limiting fluids can lead to body imbalances causing confusion; perhaps adjusting fluid intake timing is necessary.
 - C. Post-surgical confusion is common, and it's safe not to urinate at night.
 - D. Confusion after surgery is typical in the elderly due to sleep loss.
 
Correct answer: B
Rationale: The correct answer is B. In elderly patients, fluid and electrolyte imbalances can manifest with subtle signs like confusion. Limiting fluids can lead to such imbalances, affecting cognitive function. Adjusting the timing of fluid intake can help maintain hydration without causing nighttime disruptions. Choices A, C, and D are incorrect. Choice A suggests unnecessary hospital readmission and medication adjustments without addressing the root cause. Choice C wrongly normalizes the confusion and fails to address the potential issue of fluid restriction. Choice D incorrectly attributes confusion solely to sleep loss without considering the impact of fluid balance.
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