ATI RN
ATI Fluid and Electrolytes
1. A nurse is caring for a patient who requires measurement of specific gravity every 4 hours. What does this test detect?
- A. Nutritional deficit
- B. Hyperkalemia
- C. Hypercalcemia
- D. Fluid volume status
Correct answer: D
Rationale: Specific gravity is a test used to determine the concentration of solutes in the urine, reflecting the kidney's ability to concentrate urine. Changes in specific gravity can indicate fluid volume status, such as dehydration (fluid volume deficit) or overhydration (fluid volume excess). Options A, B, and C are incorrect as specific gravity does not directly detect nutritional deficits, hyperkalemia, or hypercalcemia.
2. A nurse is caring for a client who is experiencing excessive diarrhea. The clients arterial blood gas values are pH 7.28, PaO2 98 mm Hg, PaCO2 45 mm Hg, and HCO3 16 mEq/L. Which provider order should the nurse expect to receive?
- A. Furosemide (Lasix) 40 mg intravenous push
- B. Sodium bicarbonate 100 mEq diluted in 1 L of D5W
- C. Mechanical ventilation
- D. Indwelling urinary catheter
Correct answer: B
Rationale:
3. A gerontologic nurse is teaching students about the high incidence and prevalence of dehydration in older adults. What factors contribute to this phenomenon? Select all that do not apply.
- A. Decreased kidney mass
- B. Decreased renal blood flow
- C. Decreased excretion of potassium
- D. Increased conservation of sodium
Correct answer: D
Rationale:
4. A nurse is caring for a client who has the following arterial blood values: pH 7.12, PaO2 56 mm Hg, PaCO2 65 mm Hg, and HCO3 22 mEq/L. Which clinical situation should the nurse correlate with these values?
- A. . Diabetic ketoacidosis in a person with emphysema
- B. Bronchial obstruction related to aspiration of a hot dog
- C. Anxiety-induced hyperventilation in an adolescen
- D. Diarrhea for 36 hours in an older, frail woman
Correct answer: A
Rationale:
5. A home care nurse prepares to administer intravenous medication to a client. The nurse assesses the site and reviews the clients chart prior to administering the medication: Client: Thomas Jackson DOB: 5/3/1936 Gender: Male January 23 (Today): Right uppe
- A. Notify the health care provider
- B. . Administer the prescribed medication.
- C. Discontinue the PICC
- D. Switch the medication to the oral route
Correct answer: B
Rationale:
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