Nursing Elites

1. A client has the following arterial blood gas (ABG) results: pH 7.51, PCO2 31 mm Hg, PO2 94 mm Hg, HCO3 24 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: D

Rationale: The ABG results show a pH above the normal range (7.35-7.45) and a decreased PCO2, indicating respiratory alkalosis. In respiratory alkalosis, the pH is increased and the PCO2 is decreased. Metabolic acidosis (choice A) would present with a low pH and low HCO3 levels. Metabolic alkalosis (choice B) would show an increased pH and HCO3 levels. Respiratory acidosis (choice C) would have a low pH and an increased PCO2.

2. A client with chronic renal failure is being treated with sodium polystyrene sulfonate (Kayexalate). The nurse should monitor the client for which of the following?

• A. Hyponatremia.
• B. Hypokalemia.
• C. Hyperkalemia.
• D. Hypocalcemia.

Correct answer: C

Rationale: The correct answer is C: Hyperkalemia. Sodium polystyrene sulfonate (Kayexalate) is used to treat high potassium levels (hyperkalemia) by exchanging sodium ions for potassium ions in the large intestine, which is then eliminated through the feces. Therefore, the nurse should monitor the client for changes in potassium levels to ensure the effectiveness of the treatment. Choices A, B, and D are incorrect because sodium polystyrene sulfonate (Kayexalate) is not associated with causing hyponatremia, hypokalemia, or hypocalcemia.

3. A client has just had a central line catheter placed that is specific for hemodialysis. What is the most appropriate action by the nurse?

• A. Use the catheter for the next laboratory blood draw.
• B. Monitor the central venous pressure through this line.
• C. Access the line for the next intravenous medication.
• D. Place a heparin or heparin/saline dwell after hemodialysis.

Correct answer: D

Rationale: The most appropriate action for the nurse after a central line catheter placement for hemodialysis is to place a heparin or heparin/saline dwell after hemodialysis treatment. This helps prevent clot formation in the line and maintain patency for future use. Using the catheter for blood draws is not recommended as it may increase the risk of infection. Monitoring central venous pressure is not indicated with this type of catheter. Accessing the line for medications is also not recommended to prevent complications and ensure the line is solely used for hemodialysis purposes.

4. A healthcare professional is reviewing the results of serum laboratory studies of a client with suspected hepatitis. Which increased parameter is interpreted as the most specific indicator of this disease?

• A. Hemoglobin
• B. Serum bilirubin
• C. Blood urea nitrogen (BUN)
• D. Erythrocyte sedimentation rate (ESR)

Correct answer: B

Rationale: Serum bilirubin is the most specific indicator of hepatitis as it reflects liver dysfunction. Hemoglobin, blood urea nitrogen (BUN), and erythrocyte sedimentation rate (ESR) are not specific to hepatitis. Hemoglobin measures the oxygen-carrying capacity of red blood cells, BUN evaluates kidney function, and ESR is a nonspecific marker of inflammation or infection.

5. A client with a history of calcium phosphate urinary stones is being taught by a nurse. Which statements should the nurse include in this client’s dietary teaching? (Select all that apply.)

• A. Limit your intake of food high in animal protein.
• B. Read food labels to help minimize your sodium intake.
• C. A and B
• D. Reduce your intake of milk and other dairy products.

Correct answer: C

Rationale: For a client with a history of calcium phosphate urinary stones, it is essential to limit the intake of foods high in animal protein to prevent the formation of stones. Additionally, reducing sodium intake is crucial as high sodium levels can contribute to stone formation. Therefore, choices A and B are correct. Choice D, which suggests reducing intake of milk and other dairy products, is not specifically recommended for calcium phosphate stones. Clients with calcium phosphate stones should focus on limiting animal protein, sodium, and calcium intake. Choices A and B address these dietary modifications, making them the correct options for this client. Choices D, which is not directly related to calcium phosphate stones, is incorrect.

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