ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. You are doing discharge teaching with a patient who has hypophosphatemia during his time in hospital. The patient has a diet ordered that is high in phosphate. What foods would you teach this patient to include in his diet? Select all that do not apply
- A. Milk
- B. Beef
- C. Poultry
- D. Liver
Correct answer: B
Rationale:
2. 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.
3. A patient who is in renal failure partially loses the ability to regulate changes in pH because the kidneys:
- A. Regulate and reabsorb carbonic acid to change and maintain pH
- B. Buffer acids through electrolyte changes
- C. Regenerate and reabsorb bicarbonate to maintain a stable pH
- D. Combine carbonic acid and bicarbonate to maintain a stable pH
Correct answer: C
Rationale: The correct answer is C. In renal failure, the kidneys lose the ability to regulate pH by controlling bicarbonate levels in the extracellular fluid (ECF). The kidneys can regenerate and reabsorb bicarbonate ions to maintain a stable pH. Choices A, B, and D are incorrect because the kidneys do not primarily regulate or reabsorb carbonic acid, buffer acids through electrolyte changes, or combine carbonic acid and bicarbonate to maintain pH. The key function of the kidneys in maintaining pH balance lies in the control of bicarbonate levels.
4. The nurse is preparing to insert a peripheral IV catheter into a patient who will require fluids and IV antibiotics. How should the nurse always start the process of insertion?
- A. Leave one hand ungloved to assess the site.
- B. Cleanse the skin with normal saline.
- C. Ask the patient about allergies to latex or iodine.
- D. Remove excessive hair from the selected site.
Correct answer: C
Rationale:
5. A medical-surgical nurse is concerned about the incidence of complications related to IV therapy, including bloodstream infection. Which intervention should the nurse suggest to the management team to make the biggest impact on decreasing complications
- A. Initiate a dedicated team to insert access devices
- B. . Require additional education for all nurses.
- C. Limit the use of peripheral venous access devices.
- D. Perform quality control testing on skin preparation products.
Correct answer: A
Rationale:
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