HESI LPN
HESI Practice Test for Fundamentals
1. A client is to have mafenide (Sulfamylon) cream applied to burned areas. For which serious side effect of mafenide therapy should the LPN/LVN monitor this client?
- A. Curling ulcer
- B. Renal shutdown
- C. Metabolic acidosis
- D. Hemolysis of red blood cells
Correct answer: C
Rationale: Corrected Rationale: Metabolic acidosis is a serious side effect of mafenide therapy that should be closely monitored. Mafenide can lead to metabolic acidosis due to its inhibition of carbonic anhydrase, resulting in the accumulation of carbonic acid. Curling ulcer (Choice A) is a stress-related mucosal lesion that occurs in the duodenum, primarily due to severe burns, not directly related to mafenide therapy. Renal shutdown (Choice B) is not a common side effect of mafenide therapy. Hemolysis of red blood cells (Choice D) is not a recognized side effect of mafenide cream application.
2. A client with heart failure is being taught by a nurse on reducing daily sodium intake. Which factor is most crucial in determining the client’s ability to learn new dietary habits?
- A. The client's involvement in planning the change
- B. The cost of the dietary changes
- C. The availability of low-sodium foods
- D. The client’s previous dietary knowledge
Correct answer: D
Rationale: The client’s previous dietary knowledge is the most critical factor in determining the ability to learn new dietary habits. Understanding the client's existing dietary knowledge helps tailor the teaching to build upon what they already know. While client involvement in planning changes can increase adherence and motivation, the foundational knowledge is essential for effective learning. The cost of dietary changes and the availability of low-sodium foods are important considerations but not as crucial as the client's existing knowledge.
3. A client is 6 hours postoperative following abdominal surgery and is having difficulty voiding. Which of the following actions should the nurse take?
- A. Allow the client to hear running water while attempting to void
- B. Provide the client with a bedpan while sitting upright
- C. Insert an indwelling urinary catheter and connect it to gravity drainage
- D. Encourage the client to limit fluid intake
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to allow the client to hear running water while attempting to void. This can help stimulate the urge to urinate in a non-invasive way, promoting natural voiding. Providing a bedpan while sitting upright is also a suitable approach to facilitate voiding by encouraging a more natural position. Inserting an indwelling urinary catheter should be a last resort due to infection risks and discomfort associated with catheterization. Encouraging the client to limit fluid intake is not appropriate as hydration is crucial for overall health and can aid in promoting voiding. Therefore, the best initial intervention to promote voiding in this scenario is to allow the client to hear running water.
4. When assessing a male client, the nurse finds that he is fatigued and is experiencing muscle weakness, leg cramps, and cardiac dysrhythmias. Based on these findings, the nurse plans to check the client's laboratory values to validate the existence of which condition?
- A. Hyperphosphatemia
- B. Hypocalcemia
- C. Hypermagnesemia
- D. Hypokalemia
Correct answer: D
Rationale: The symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias are indicative of hypokalemia, a condition characterized by low potassium levels. Checking the client's laboratory values for potassium will help confirm this diagnosis. Hyperphosphatemia (Choice A) is an elevated phosphate level in the blood, which is not consistent with the symptoms described. Hypocalcemia (Choice B) is a low calcium level and typically presents with different symptoms than those mentioned in the scenario. Hypermagnesemia (Choice C) is an excess of magnesium in the blood and does not align with the symptoms of muscle weakness, leg cramps, and cardiac dysrhythmias observed in the client.
5. During preoperative teaching, a client in a surgeon’s office expresses intent to prepare advance directives before surgery. Which statement by the client indicates understanding of advance directives?
- A. “I’d prefer my brother to make decisions, but I understand it must be my wife.”
- B. “I understand the surgery won’t proceed unless I fill out these forms.”
- C. “I plan to specify my wish to avoid being kept on a breathing machine.”
- D. “I will have my primary doctor review my plan before submitting it at the hospital.”
Correct answer: C
Rationale: The correct answer is C. This statement reflects the client's understanding of advance directives, as it indicates a specific preference regarding life-sustaining treatment. Advance directives enable individuals to outline their healthcare preferences, including decisions about treatments they wish to receive or avoid. Choice A mentions family members but doesn't address specific healthcare wishes; choice B focuses on the surgery rather than personal directives; choice D discusses doctor approval but lacks details about the directive itself.
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