HESI RN
HESI 799 RN Exit Exam
1. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?
- A. Administer intravenous calcium gluconate.
- B. Administer intravenous insulin and glucose.
- C. Administer intravenous sodium bicarbonate.
- D. Administer a loop diuretic as prescribed.
Correct answer: B
Rationale: The correct answer is to administer intravenous insulin and glucose first. This intervention helps drive potassium back into the cells, lowering serum levels effectively. Administering intravenous calcium gluconate (choice A) is used to stabilize cardiac membranes in severe hyperkalemia but does not address the underlying cause. Administering intravenous sodium bicarbonate (choice C) is used in metabolic acidosis, not hyperkalemia. Administering a loop diuretic (choice D) can help eliminate potassium but is not the first-line treatment for hyperkalemia in CKD.
2. When obtaining a rectal temperature with an electronic thermometer, which action is most important for the nurse to perform?
- A. Hold the thermometer in place.
- B. Place the disposable pad under the buttocks.
- C. Instruct the client to breathe deeply.
- D. Return the probe to the charger.
Correct answer: A
Rationale: When obtaining a rectal temperature with an electronic thermometer, holding the thermometer in place is crucial. This action ensures accurate temperature measurement and prevents injury to the client. Option B, placing a disposable pad under the buttocks, is not the most important action; it may enhance comfort but does not impact the accuracy of the temperature reading. Option C, instructing the client to breathe deeply, is irrelevant to obtaining a rectal temperature. Option D, returning the probe to the charger, is an incorrect action after temperature measurement.
3. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value requires immediate intervention?
- A. Serum ammonia level of 80 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Serum sodium level of 135 mEq/L
- D. Prothrombin time of 18 seconds
Correct answer: D
Rationale: The correct answer is D. A prothrombin time of 18 seconds is most concerning in a client with hepatic encephalopathy as it indicates impaired liver function and an increased risk of bleeding. This requires immediate intervention to prevent bleeding complications. Choice A, serum ammonia level of 80 mcg/dl, is elevated but not as urgent as the abnormal prothrombin time. Choice B, bilirubin level of 3.0 mg/dl, is elevated but does not directly indicate an urgent need for intervention in this situation. Choice C, serum sodium level of 135 mEq/L, is within the normal range and does not require immediate intervention.
4. A client with a history of chronic kidney disease (CKD) is admitted with hyperkalemia. Which clinical finding is most concerning?
- A. Peaked T waves on the ECG
- B. Bradycardia
- C. Muscle weakness
- D. Decreased deep tendon reflexes
Correct answer: A
Rationale: Peaked T waves on the ECG are the most concerning finding in a client with hyperkalemia. Hyperkalemia can lead to serious cardiac complications, including arrhythmias and cardiac arrest. Peaked T waves are a classic ECG finding associated with hyperkalemia and indicate the need for immediate intervention. Bradycardia, muscle weakness, and decreased deep tendon reflexes can also be seen in hyperkalemia, but the presence of peaked T waves signifies a higher risk of cardiac events, making it the most concerning finding in this scenario.
5. The nurse is assessing a female client's blood pressure because she reported feeling dizzy. The blood pressure cuff is inflated to 140 mm Hg and as soon as the cuff is deflated a Korotkoff sound is heard. Which intervention should the nurse implement next?
- A. Wait 1 minute and palpate the systolic pressure before auscultating again.
- B. Increase the inflation pressure by 20 mm Hg and measure again.
- C. Switch to a larger cuff and repeat the measurement.
- D. Document the finding as normal.
Correct answer: A
Rationale: If a Korotkoff sound is heard immediately upon deflation, it may indicate an inaccurate reading. Waiting and palpating the systolic pressure can help confirm the accuracy of the measurement. Choice A is the correct intervention because it allows the nurse to ensure the accuracy of the blood pressure reading. Choice B is incorrect as increasing the inflation pressure is not necessary in this situation. Choice C is also incorrect as switching to a larger cuff is not warranted based on the information provided. Choice D is incorrect because documenting the finding as normal without further verification could lead to inaccurate information.
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