ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. 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:
2. A nurse is caring for a client who is having a subclavian central venous catheter inserted. The client begins to report chest pain and difficulty breathing. After administering oxygen, which action should the nurse take next?
- A. Administer a sublingual nitroglycerin tablet
- B. Prepare to assist with chest tube insertion.
- C. . Place a sterile dressing over the IV site
- D. Re-position the client into the Trendelenburg position.
Correct answer: B
Rationale:
3. 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.
4. A nurse develops a plan of care for a client who has a history of hypocalcemia. What interventions should the nurse include in this clients care plan? (Select all that apply.)
- A. Use a draw sheet to reposition the client in bed.
- B. . Strain all urine output and assess for urinary stones.
- C. Provide nonslip footwear for the client to use when out of bed.
- D.
Correct answer: B
Rationale:
5. Which of the following might the nurse assess in a patient diagnosed with hypermagnesemia?
- A. Diminished deep tendon reflexes
- B. Tachycardia
- C. Cool clammy skin
- D. Increased serum magnesium
Correct answer: A
Rationale: The correct answer is A: Diminished deep tendon reflexes. In a patient with hypermagnesemia, the nurse would assess for diminished deep tendon reflexes. Hypermagnesemia can lead to neuromuscular depression, causing a decrease in deep tendon reflexes. Tachycardia (choice B) is more commonly associated with hypomagnesemia. Cool clammy skin (choice C) is not typically a direct symptom of hypermagnesemia. While hypermagnesemia does involve increased serum magnesium levels (choice D), assessing serum levels is a laboratory test and not a clinical assessment like checking deep tendon reflexes.
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