ATI RN
Fluid and Electrolytes ATI
1. A nurse sees a variety of patients in the community health clinic. Which of the following patients would be at the greatest risk of dehydration?
- A. An 18-year-old basketball player with a stress fracture of the right foot
- B. An infant with diarrhea
- C. A 45-year-old with stomach flu
- D. An elderly patient living alone
Correct answer: B
Rationale: The correct answer is B. Infants are particularly vulnerable to dehydration due to diarrhea because they have a higher fluid turnover and less reserve. Option A, the 18-year-old basketball player with a stress fracture, is less likely to be at the greatest risk of dehydration compared to an infant with diarrhea. Option C, the 45-year-old with stomach flu, may experience dehydration but is not at the same level of risk as an infant with diarrhea. Option D, the elderly patient living alone, could be at risk of dehydration, but infants with diarrhea are at the greatest risk due to their unique physiological characteristics.
2. 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:
3. While assessing a patient's 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: Infiltration is the administration of a nonvesicant solution or medication into the surrounding tissue, typically due to the dislodgement or perforation of the vein wall by the IV cannula. It is characterized by edema around the insertion site, leakage of IV fluid, discomfort, coolness, and a decrease in flow rate. In this scenario, the presence of edema indicates infiltration, not air emboli, phlebitis, or fluid overload. Air emboli refer to air bubbles in the bloodstream, phlebitis is inflammation of the vein, and fluid overload is an excessive volume of fluid in the circulatory system.
4. A nurse is caring for a client who has just experienced a 90-second tonic-clonic seizure. The clients arterial blood gas values are pH 6.88, PaO2 50 mm Hg, PaCO2 60 mm Hg, and HCO3 22 mEq/L. Which action should the nurse take first?
- A. . Apply oxygen by mask or nasal cannula
- B. Apply a paper bag over the clients nose and mouth.
- C. Administer 50 mL of sodium bicarbonate intravenously.
- D. Administer 50 mL of 20% glucose and 20 units of regular insulin.
Correct answer: A
Rationale:
5. A nurse is planning care for a client who is hyperventilating. The clients arterial blood gas values are pH 7.30, PaO2 94 mm Hg, PaCO2 31 mm Hg, and HCO3 26 mEq/L. Which question should the nurse ask when developing this clients plan of care?
- A. Do you take any over-the-counter medications?
- B. You appear anxious. What is causing your distress?
- C. Do you have a history of anxiety attacks?
- D. You are breathing fast. Is this causing you to feel light-headed?
Correct answer: B
Rationale:
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