HESI RN
HESI Fundamentals Practice Test
1. The healthcare professional is monitoring a client receiving IV potassium chloride. Which assessment finding should prompt the healthcare professional to immediately stop the infusion?
- A. The client reports pain at the IV site
- B. The client’s heart rate is irregular
- C. The client has swelling at the IV site
- D. The client’s blood pressure is elevated
Correct answer: B
Rationale: An irregular heart rate is a critical sign of hyperkalemia, a serious condition that can lead to life-threatening cardiac arrhythmias. Stopping the infusion promptly is crucial to prevent further complications. The healthcare professional should inform the healthcare provider immediately for further evaluation and management. Choice A is incorrect because pain at the IV site is common and may not necessitate stopping the infusion. Choice C is incorrect as swelling at the IV site may indicate a local reaction but is not a reason to stop the infusion. Choice D is incorrect as an elevated blood pressure alone is not a direct indication to stop the infusion of IV potassium chloride.
2. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?
- A. Administer regular insulin IV.
- B. Administer IV fluids at 250 ml/hr.
- C. Administer sodium bicarbonate IV push.
- D. Administer furosemide (Lasix) IV push.
Correct answer: A
Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.
3. A client is admitted with a diagnosis of right-sided heart failure. What assessment finding should the nurse anticipate?
- A. Jugular vein distention.
- B. Crackles in the lungs.
- C. Peripheral edema.
- D. Hepatomegaly.
Correct answer: C
Rationale: In right-sided heart failure, the heart's inability to effectively pump blood to the lungs leads to fluid backup in the systemic circulation, resulting in peripheral edema (swelling in lower extremities). While jugular vein distention (A) and hepatomegaly (D) can also occur in right-sided heart failure, peripheral edema is a hallmark sign due to fluid retention. Crackles in the lungs (B) are more commonly associated with left-sided heart failure, where fluid accumulates in the lungs.
4. The client has removed the covering from an ice pack applied to his knee. What action should the nurse take first?
- A. Observe the appearance of the skin under the ice pack.
- B. Instruct the client regarding the importance of the covering.
- C. Reapply the covering after filling it with fresh ice.
- D. Ask the client how long the ice pack was applied to the skin.
Correct answer: A
Rationale: The primary action for the nurse is to assess the skin under the ice pack to check for any potential thermal injury. This assessment is crucial to ensure the client's safety. Once the skin assessment is done and no harm is found, the nurse can proceed with other necessary actions such as providing instructions to the client or replacing the covering with fresh ice.
5. A client is to receive 10 mEq of KCl diluted in 250 ml of normal saline over 4 hours. At what rate should the nurse set the client's intravenous infusion pump?
- A. 13 ml/hour.
- B. 63 ml/hour.
- C. 80 ml/hour.
- D. 125 ml/hour.
Correct answer: B
Rationale: The correct calculation involves dividing the total volume by the total time. In this case, 250 ml/4 hours = 63 ml/hour. The dose of KCl is not used in the calculation as the focus is on the rate of infusion over the specified time period. Choice A (13 ml/hour) is incorrect as it does not result from the correct calculation. Choice C (80 ml/hour) and Choice D (125 ml/hour) are also incorrect calculations and do not match the correct rate of infusion required.
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