ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse is caring for clients with electrolyte imbalances on a medical-surgical unit. Which clinical manifestations are correctly paired with the contributing electrolyte imbalance? (Select all that do not apply.)
- A. Hypokalemia Flaccid paralysis with respiratory depression
- B. Hyperphosphatemia Paresthesia with sensations of tingling and numbness
- C. . Hyponatremia Decreased level of consciousness
- D.
Correct answer: B
Rationale:
2. A nurse is visiting an 84-year-old woman living at home and recovering from hip surgery. The woman seems confused and has poor skin turgor, and she states that 'she stops drinking water early in the day because it is too difficult to get up during the night to go to the bathroom.' The nurse explains to the woman that:
- A. She will need to have her medications adjusted and be readmitted to the hospital for a complete workup.
- B. Limiting fluids can create imbalances in the body that can result in confusion; maybe we need to adjust the timing of your fluids.
- C. It is normal to be a little confused following surgery and it is safe not to urinate at night.
- D. Confusion following surgery is common in the elderly due to loss of sleep.
Correct answer: B
Rationale: The correct answer is B. In elderly patients, fluid deficits can lead to confusion and cognitive impairment. Limiting fluids can disrupt the body's balance, leading to such symptoms. Adjusting the timing of fluids can help maintain hydration without causing nighttime interruptions. Choices A, C, and D are incorrect because they do not address the underlying issue of fluid imbalance causing confusion. Choice A suggests unnecessary hospital readmission and medication adjustments. Choice C incorrectly normalizes confusion post-surgery and suggests it is safe not to urinate at night, which can exacerbate the issue. Choice D inaccurately attributes confusion to sleep loss rather than fluid imbalance.
3. The physician has ordered a peripheral IV to be inserted before the patient goes for computed tomography. What should the nurse do when selecting a site on the hand or arm for insertion of an IV catheter?
- A. Choose a hairless site if available.
- B. Consider potential effects on the patients mobility when selecting a site.
- C. Have the patient briefly hold his arm over his head before insertion
- D. Leave the tourniquet on for at least 3 minutes.
Correct answer: B
Rationale:
4. You are caring for a patient with a diagnosis of pancreatitis. The patient was admitted from a homeless shelter and is a vague historian. The patient appears malnourished and on day 3 of the patients admission total parenteral nutrition (TPN) has been started. Why would you know to start the infusion of TPN slowly?
- A. Patients receiving TPN are at risk for hypercalcemia if calories are started too rapidly.
- B. Malnourished patients receiving parenteral nutrition are at risk for hypophosphatemia if calories are started too aggressively.
- C. Malnourished patients who receive fluids too rapidly are at risk for hypernatremia.
- D. Patients receiving TPN need a slow initiation of treatment in order to allow digestive enzymes to accumulate
Correct answer: B
Rationale:
5. What can cause dehydration?
- A. Prolonged vomiting.
- B. Prolonged diarrhea.
- C. Too little fluid intake.
- D. Prolonged vomiting, diarrhea, and too little fluid intake.
Correct answer: D
Rationale: Dehydration can result from significant fluid loss due to vomiting, diarrhea, or inadequate fluid intake. Prolonged vomiting and diarrhea lead to excessive fluid loss from the body, contributing to dehydration. Similarly, not consuming enough fluids can also result in dehydration. Choice A and B are too specific as they only mention one cause each, while choice C is also correct but does not encompass all the potential causes of dehydration as mentioned in choice D.
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